Haleakalā National Park may be best known for volcanic craters, spectacular sunrises, and the otherworldly summit of Haleakalā, but the park has an entirely different personality on the wet eastern side of Maui. In the remote Kīpahulu District, streams descend from the slopes of the volcano through lush forest, plunge over towering cliffs, and form a succession of waterfalls on their way toward the Pacific Ocean.
The best-known waterfalls in Haleakalā National Park are Waimoku Falls and Makahiku Falls, both reached along the Pīpīwai Trail. Waimoku drops roughly 400 feet down an immense green cliff, while Makahiku plunges nearly 200 feet into a forested gorge. Closer to the coast, the Pools of ʻOheʻo form a beautiful series of stream pools and cascades descending toward the ocean.
Together, these waterfalls reveal a side of Haleakalā that could hardly be more different from the summit. Instead of cinder cones and sparse high-elevation vegetation, Kīpahulu is warm, humid, frequently rainy, and intensely green.
Water is the force connecting all of it. Rain falling on the upper slopes of Haleakalā gathers in streams, carves valleys, nourishes forests, supports native freshwater animals, creates dramatic waterfalls, and eventually reaches the sea.
For visitors willing to make the long journey to Kīpahulu, exploring these waterfalls is one of the most rewarding experiences in Haleakalā National Park.
⚡ Haleakalā Waterfalls Fast Facts
- Main waterfall area: Kīpahulu District
- Best waterfall hike: Pīpīwai Trail
- Pīpīwai Trail distance: 4 miles round trip
- Elevation gain: About 800 feet
- Largest famous waterfall: Waimoku Falls
- Waimoku Falls height: About 400 feet
- Makahiku Falls height: Nearly 200 feet
- Distance to Makahiku Falls overlook: About 0.5 mile
- Distance to Waimoku Falls viewpoint: About 2 miles
- Other major water feature: Pools of ʻOheʻo
- Pools of ʻOheʻo swimming: Closed to entry
- Kūloa Point Trail: About 0.5 mile
- Major hazards: Flash floods, falling rocks, slippery surfaces, and rapidly rising streams
- Best footwear: Sturdy hiking shoes with good traction
- Pets: Not allowed on the Pīpīwai Trail
- Best advice: Stay on established trails and never enter closed waterfall areas
🌿 Where Are Haleakalā National Park’s Waterfalls?
Most visitors searching for waterfalls in Haleakalā National Park should head to the Kīpahulu District.
Kīpahulu occupies the lush eastern side of Haleakalā near the end of the famous Road to Hana. The landscape receives considerably more moisture than the high summit district, creating streams, dense vegetation, freshwater ecosystems, and numerous waterfalls.
The two districts feel almost like separate national parks.
Around the summit, visitors encounter volcanic cinder, cold temperatures, alpine vegetation, and huge views into the Haleakalā crater.
Kīpahulu is lower, warmer, wetter, and dominated by water.
The Haleakalā National Park’s Bamboo Forest is also located here along the Pīpīwai Trail.
Visitors cannot drive directly through the national park from the summit to Kīpahulu. Each district requires a separate road approach, so they are best treated as different excursions.
💦 1. Waimoku Falls
Waimoku Falls is the signature waterfall of Haleakalā National Park.
Water drops approximately 400 feet from a high cliff at the upper end of the Pīpīwai Trail, breaking into white ribbons against dark volcanic rock and lush vegetation.
The scale becomes increasingly apparent as hikers approach.
From farther down the trail, the waterfall may appear relatively slender. Near the designated endpoint, the surrounding cliffs tower overhead and the entire setting feels enormous.
The trail ends at the official Waimoku Falls viewing area.
Do not continue beyond it.
The terrain closer to the cliff is closed because of hazards from falling rocks, unstable surfaces, flash flooding, and debris coming over the falls.
Waimoku is best appreciated from the safe viewing area rather than from directly beneath the water.
🥾 Hiking to Waimoku Falls
Reaching Waimoku Falls requires hiking the Pīpīwai Trail.
The route is approximately two miles each way, creating a four-mile round trip with roughly 800 feet of elevation gain.
The mileage alone can make the hike appear fairly easy, but conditions often add difficulty.
Expect rocks, roots, stairs, mud, wet boardwalks, bridges, and sections of steady climbing.
Kīpahulu can be hot and humid, and rain is common.
For many hikers, the complete round trip requires two to four hours.
The journey is part of the attraction.
Before reaching Waimoku Falls, hikers pass Makahiku Falls, an enormous banyan tree, freshwater streams, bridges, and the famous bamboo forest.
Few four-mile national park hikes offer this much variety.
💦 2. Makahiku Falls
Makahiku Falls is the first major waterfall on the Pīpīwai Trail.
The overlook lies about half a mile from the trailhead, making Makahiku an excellent destination for visitors who do not want to complete the full four-mile hike.
Water plunges nearly 200 feet down a steep green cliff into a deep valley.
The name Makahiku is sometimes overshadowed by Waimoku, but the waterfall would be a major attraction anywhere else.
Its setting is especially beautiful.
Dense tropical vegetation surrounds the gorge, and the stream appears suddenly between layers of forest.
Visitors can enjoy the waterfall from the established overlook without entering hazardous terrain.
🥾 A Shorter Waterfall Hike
The hike to Makahiku Falls is roughly one mile round trip.
The National Park Service estimates that many visitors can reach the overlook in around 30 minutes and return in a similar amount of time.
Even this shorter option involves an unpaved trail.
Roots, rocks, mud, steps, and elevation gain remain part of the experience.
For travelers short on time, families uncertain about completing the full Pīpīwai Trail, or visitors arriving late in the day, Makahiku provides a rewarding turnaround point.
Those with sufficient time and energy can simply continue another 1.5 miles toward the bamboo forest and Waimoku Falls.
🎋 Waterfalls and the Bamboo Forest
Between Makahiku Falls and Waimoku Falls, the Pīpīwai Trail enters one of Maui’s most recognizable landscapes.
Towering bamboo surrounds the trail, and raised boardwalks lead through the dense grove.
Wind causes the bamboo stalks to strike one another, producing hollow knocks, clacks, and creaks.
The forest begins about a mile from the trailhead.
Although the bamboo itself is nonnative, the grove has become one of the most memorable features of the Pīpīwai Trail.
Combining the bamboo forest with two major waterfalls is what makes this route exceptional.
Visitors who hike only to Waimoku without slowing down through the forest miss a major part of the experience.
🌊 3. The Pools of ʻOheʻo
Near the coast, Pīpīwai Stream descends through a series of waterfalls and pools known as the Pools of ʻOheʻo.
The pools were historically promoted under the nickname “Seven Sacred Pools,” although the system does not contain exactly seven pools and that tourism name does not accurately represent the area’s Hawaiian cultural history.
ʻOheʻo Gulch is a dynamic stream system.
Water cascades from one pool to another before eventually reaching the Pacific Ocean.
The amount of water changes enormously according to rainfall.
After wet weather, the cascades can become powerful and turbulent. During drier periods, flow may be considerably lower.
The Pools of ʻOheʻo can currently be viewed from designated trails, but entry and swimming remain closed because of significant safety hazards.
🚫 Why You Cannot Swim in the Pools of ʻOheʻo
Photographs of swimmers in the Pools of ʻOheʻo still circulate online, leading some visitors to expect a natural swimming destination.
That information is outdated.
The pools are not currently accessible for swimming.
Flash floods can arrive with little warning because rain may be falling far upslope even when the coast is sunny.
Rockfalls are another major hazard.
Cliffs surrounding the pools continually weather and occasionally release rocks and debris.
The combination has caused serious accidents and fatalities.
Visitors can safely appreciate the pools from the Kūloa Point Trail without entering the stream.
Respecting closures is especially important here because conditions that appear calm can change rapidly.
🥾 Kūloa Point Trail
The Kūloa Point Trail is the best route for seeing the lower ʻOheʻo landscape.
The trail is approximately half a mile and begins near the Kīpahulu Visitor Center.
Along the route, visitors pass cultural features and viewpoints before reaching the lower portion of ʻOheʻo Gulch and the coastline.
Ocean scenery adds another dimension to the walk.
The water seen cascading through the gulch has traveled down the enormous slopes of Haleakalā and is completing its journey toward the Pacific.
Combining the Kūloa Point Trail with the Pīpīwai Trail provides an excellent overview of the Kīpahulu watershed from inland forest to sea.
🌊 More Cascades Along Pīpīwai Stream
Waimoku and Makahiku receive most of the attention, but they are not the only moving water along the Pīpīwai Trail.
Smaller cascades appear along streams and drainage channels, especially during wet periods.
Some are seasonal.
Others become much more dramatic after heavy rain.
These unnamed cascades contribute enormously to the atmosphere of the hike.
The sound of running water accompanies sections of the trail, and bridges provide glimpses into steep stream channels surrounded by dense vegetation.
Visitors should resist the temptation to leave the trail to find hidden waterfalls.
Off-trail travel is dangerous and prohibited in sensitive portions of Kīpahulu.
🌧️ Why Kīpahulu Has So Many Waterfalls
Waterfalls exist here because of a combination of rainfall, volcanic geology, and steep topography.
Moist air moving across Maui is forced upward by Haleakalā.
As that air rises and cools, moisture condenses and falls as rain, particularly on the windward eastern side of the island.
Water then moves downhill across a massive volcanic landscape.
Streams cut through layers of lava and volcanic rock.
Where resistant rock forms cliffs or abrupt changes in elevation, streams plunge downward and create waterfalls.
Over time, those streams deepen valleys and gulches.
The terrain visitors see today is therefore shaped not only by volcanic eruptions but also by enormous amounts of flowing water.
🌋 Waterfalls on a Volcano
The connection between volcanoes and waterfalls may seem surprising.
Haleakalā was constructed by repeated volcanic eruptions that built Maui thousands of feet above the Pacific.
Once lava cooled, rain and erosion began modifying that volcanic landscape.
Streams followed weaknesses in the rock.
Valleys grew deeper.
Cliffs retreated.
Waterfalls developed where streambeds encountered resistant lava layers or steep changes in terrain.
The waterfalls are therefore part of the continuing evolution of the volcano.
Lava creates the land.
Water reshapes it.
This interaction has been occurring across Maui for hundreds of thousands of years.
🌧️ Waterfall Flow Changes Constantly
A photograph cannot tell you exactly what a waterfall will look like when you arrive.
Water flow varies with rainfall.
After wet weather, Waimoku and Makahiku may carry substantially more water.
Smaller cascades appear along slopes that may be dry at other times.
During drier periods, some streams shrink dramatically.
Visitors sometimes assume that more water always means a better waterfall experience.
That is not necessarily true.
Heavy rain can create flash-flood conditions, close trails, increase rockfall risk, and make hiking surfaces dangerously slippery.
A slightly smaller waterfall viewed safely is far better than entering a dangerous area during extreme flow.
⚠️ Flash Floods in Kīpahulu
Flash flooding is one of the most serious hazards anywhere in the Kīpahulu District.
A stream may appear calm even while intense rain is falling several miles upslope.
Water gathers rapidly in the mountains and rushes downhill through narrow stream channels.
The change can be dramatic.
National Park Service safety information notes that floodwaters can rise extremely quickly.
Visitors standing in pools or beneath waterfalls may have very little time to react.
This is why traditional Hawaiian knowledge emphasizes looking toward the mountains before entering streams.
The weather directly above your head does not necessarily reveal what is happening upstream.
🪨 Falling Rocks
Waterfall cliffs are also natural rockfall zones.
Water enters fractures in volcanic rock.
Plant roots expand cracks.
Weathering loosens blocks.
Heavy rain saturates soil and can destabilize cliff faces.
Eventually rocks fall.
The roar of a waterfall can make falling debris difficult or impossible to hear.
The danger is particularly severe directly beneath a tall waterfall, where a relatively small stone can gain tremendous speed before reaching the ground.
This is one reason visitors should never bypass barriers near Waimoku Falls or the Pools of ʻOheʻo.
The established viewpoints exist for a reason.
🚫 Do Not Hike Beyond Waimoku Falls
The maintained Pīpīwai Trail ends at the designated Waimoku Falls viewing area.
Continuing beyond that point is prohibited.
Older online trip reports sometimes describe hikers approaching the base of the waterfall or continuing farther into the valley.
Those accounts should not be treated as current trail guidance.
The area beyond the established endpoint includes dangerous cliffs, rockfall zones, stream hazards, and protected landscapes.
Kīpahulu Valley contains ecologically important native Hawaiian ecosystems that are not open for ordinary recreational hiking.
Enjoy the waterfall from the official endpoint and return along the established route.
🌴 The Kīpahulu Watershed
The waterfalls are part of a much larger watershed extending from the high slopes of Haleakalā to the sea.
Traditional Native Hawaiian land management recognized these connections through the concept of the ahupuaʻa, land divisions generally extending from mountains toward the coast.
Forests high above the shoreline capture moisture.
Streams carry freshwater downhill.
People historically depended on this water for agriculture and daily life.
Streams also support native animals and connect freshwater environments with marine ecosystems.
Understanding the waterfalls as pieces of a complete watershed gives them greater meaning.
Waimoku Falls is not an isolated scenic feature.
It is one dramatic point along water’s journey through Kīpahulu.
🐟 Native Animals in the Streams
Kīpahulu streams contain unusual native animals adapted to island waterways.
Among the most fascinating are Hawaiian freshwater gobies.
Some species have specialized fins that allow them to cling to rocks and climb steep wet surfaces.
This ability helps them move upstream past obstacles that ordinary fish could never cross.
Their life cycles can connect freshwater streams with the ocean.
Native freshwater shrimp also inhabit park waterways.
These small animals are easy to overlook compared with a 400-foot waterfall, but they demonstrate that the streams are living ecosystems rather than merely scenic water features.
Do not enter or disturb stream habitat while trying to see them.
🌿 Water and the Forest
Water also shapes the vegetation around the waterfalls.
High rainfall supports lush forest, ferns, mosses, and other moisture-loving plants.
Trees shade streams and help stabilize slopes.
Plant roots influence erosion, while fallen leaves and other organic material enter the water and contribute nutrients to stream ecosystems.
The relationship goes both ways.
Streams provide water to plants, while vegetation influences the temperature, chemistry, and stability of the streams.
Nonnative vegetation has altered portions of Kīpahulu, making invasive-plant control an important conservation challenge.
The landscape may look uniformly green to a casual visitor, but ecologically, native and introduced forests can function quite differently.
🌺 ʻŌhiʻa and Hawaiian Forests
ʻŌhiʻa lehua is one of the most important native trees in Hawaiian ecosystems.
It can establish on relatively young volcanic landscapes and eventually form forest that supports birds, insects, and other native organisms.
Its bright flowers provide nectar for native honeycreepers.
Healthy upland forests also influence watershed conditions.
Vegetation intercepts rain, slows runoff, and helps regulate how water moves through the landscape.
Protecting a waterfall therefore begins far above the cliff itself.
The health of the entire watershed determines the quality of water and habitat downstream.
☔ Is Rain Good for a Waterfall Visit?
A little rain can make Kīpahulu especially atmospheric.
Leaves become glossy, mist gathers among the cliffs, and waterfalls gain volume.
Light rain is so common that waiting for a perfectly dry day may not be realistic.
Heavy rain is another matter.
Trails become slippery, streams rise, and the possibility of flash flooding increases.
Check the park’s current conditions before beginning the Pīpīwai Trail and pay attention to ranger guidance once you arrive.
Never interpret an open trail as permission to ignore changing weather.
Conditions can deteriorate after you begin hiking.
🥾 Hiking Conditions
The Pīpīwai Trail is unpaved and often uneven.
Roots cross the route.
Rocks become slick when wet.
Mud can be deep enough to make every step messy.
Wooden boardwalks in the bamboo forest improve travel through particularly wet sections but can also become slippery.
Sturdy shoes with good traction are strongly preferable to flip-flops.
Bring water, snacks, rain protection, and sun protection.
The tropical setting sometimes encourages visitors to treat the trail like a casual beach excursion.
It is better approached as a genuine hike through wet mountain terrain.
🌡️ Heat and Humidity
Kīpahulu can be hot and humid even when the summit of Haleakalā is cold.
The trail climbs steadily enough that hikers generate considerable heat.
Humidity slows the body’s ability to cool itself through evaporation.
Carry sufficient drinking water and take breaks before becoming exhausted.
The dense forest provides shade in many places, but exposed sections can still receive intense tropical sunlight.
A hat and sunscreen remain useful even on a waterfall hike.
Weather can also shift quickly between sunshine and rain, making lightweight layers preferable.
🦟 Mosquitoes
Wet tropical environments can support mosquitoes.
Insect repellent may be useful, particularly after rain.
Mosquitoes in Hawaiʻi are introduced rather than native and have created serious ecological problems by transmitting diseases to native forest birds.
Visitors can help protect the park by following biosecurity guidance and keeping equipment clean.
Do not leave containers or litter that can collect standing water.
Avoid carrying mud, seeds, or plant material from one hiking location to another.
📷 Photographing Haleakalā’s Waterfalls
Waterfalls are among the most popular photography subjects in Kīpahulu.
Makahiku Falls is best photographed from the official overlook.
Waimoku Falls becomes visible from several points near the end of the Pīpīwai Trail, with the designated final viewpoint providing the safest close perspective.
Cloudy weather often creates excellent waterfall photographs because soft light reduces harsh highlights and deep shadows.
A phone or normal camera is more than sufficient.
The important limitation is position.
Never leave the trail, cross barriers, or stand beneath unstable cliffs merely to improve a composition.
No photograph is worth entering a rockfall or flash-flood zone.
🌅 Best Time of Day
Early morning is generally the best time to begin the Pīpīwai Trail.
Temperatures are cooler, the trail may be less crowded, and you have plenty of daylight if rain or trail conditions slow the hike.
An early start is especially useful for travelers arriving via the Hana Highway.
Driving through East Maui takes longer than mileage alone suggests because of narrow roads, curves, bridges, traffic, and frequent scenic stops.
Starting the waterfall hike late in the afternoon creates unnecessary pressure to hurry.
Kīpahulu should be experienced slowly rather than squeezed between too many Road to Hana stops.
📅 Best Time of Year
Haleakalā’s Kīpahulu waterfalls can be visited throughout the year.
There is no month that guarantees ideal waterfall flow and perfect weather.
Wetter periods may produce more dramatic waterfalls but also greater flood risk.
Drier periods can create easier hiking conditions but reduced flow.
Instead of planning around the idea of a perfect waterfall season, check current conditions close to your visit.
The Pīpīwai Trail’s combination of forest, bamboo, streams, and major waterfalls remains worthwhile even when flow is moderate.
🚗 Reaching Kīpahulu
Kīpahulu is remote.
Most visitors reach it by following the Hana Highway through East Maui.
The drive is spectacular but demanding.
Expect narrow sections, one-lane bridges, sharp curves, local traffic, and frequent changes in speed.
Fuel and food are not available inside the Kīpahulu portion of the national park, so arrive prepared.
The trip should not be judged solely by the number of miles shown on a map.
Allow substantially more travel time than you would for an ordinary highway journey.
🎟️ Do You Need a Reservation?
A separate reservation is not required simply to hike the Pīpīwai Trail or view the Kīpahulu waterfalls.
Visitors do need a valid Haleakalā National Park entrance pass.
The special sunrise reservation system applies to vehicles entering the Summit District during designated early-morning hours, not to ordinary daytime access at Kīpahulu.
This distinction is useful for visitors planning multiple Haleakalā experiences.
You can visit the summit and Kīpahulu on separate days during the validity period of an eligible park entrance pass.
🏕️ Camping Near the Waterfalls
Kīpahulu Campground allows visitors to stay within the coastal district rather than driving the Hana Highway back and forth on the same day.
Camping can make an early morning Pīpīwai hike much easier.
The setting is coastal and beautiful, but visitors should expect relatively simple facilities and remote conditions.
Reservations are required.
Bring necessary food, drinking water arrangements, and other supplies.
There are no restaurants or stores inside this district of the park.
Camping also allows more time for the Kūloa Point Trail, cultural sites, coastal scenery, and slower exploration of Kīpahulu.
🌊 Waterfalls and the Road to Hana
Maui’s Road to Hana is famous for waterfalls, but it is important to distinguish roadside waterfalls from those protected inside Haleakalā National Park.
Numerous waterfalls lie along the broader Hana Highway outside park boundaries.
They may be located on state, county, or private land.
The signature national park waterfalls are reached within Kīpahulu, particularly along the Pīpīwai Trail.
Keeping this distinction clear helps visitors understand which regulations apply and prevents accidental trespassing on private property.
Do not assume every waterfall visible from a Maui road is open for public exploration.
🗺️ A Good Waterfall Itinerary
A strong Kīpahulu waterfall day begins early.
Start with the Pīpīwai Trail and hike approximately half a mile to Makahiku Falls.
Continue through the banyan and bamboo forest before reaching the designated Waimoku Falls viewpoint at the two-mile mark.
Return to the trailhead and take a break near the Kīpahulu Visitor Center.
Afterward, walk the short Kūloa Point Trail to view the Pools of ʻOheʻo and the coastline.
This combination provides the best overall introduction to the district’s waterfalls without entering dangerous or closed areas.
⏰ How Much Time Should You Allow?
Allow at least three to four hours for the Pīpīwai Trail if you intend to hike all the way to Waimoku Falls without rushing.
Some hikers complete it more quickly, while photographers, families, and visitors encountering muddy conditions may need longer.
The shorter Makahiku Falls hike can be completed in approximately an hour.
The Kūloa Point Trail adds another relatively short walk.
For a relaxed visit that includes both trails, cultural interpretation, lunch, and time to appreciate the landscape, spending half a day in Kīpahulu is easy.
The drive required to reach the district deserves additional time beyond that.
🎒 What to Bring
For the Pīpīwai Trail, bring:
- Plenty of drinking water
- Snacks
- Sturdy shoes with good traction
- Lightweight rain protection
- Sunscreen
- A hat
- Insect repellent
- A waterproof bag or cover for electronics
- A downloaded map or park information
There is no need for specialized climbing equipment.
The most useful preparation is simply being ready for wet, uneven, humid trail conditions.
Do not bring swimming equipment with the expectation of entering waterfalls or the Pools of ʻOheʻo.
🌿 Protecting Haleakalā’s Waterfalls
Waterfalls may appear indestructible, but the ecosystems surrounding them are remarkably sensitive.
Repeated off-trail traffic damages vegetation.
Erosion sends sediment into streams.
Human waste and litter affect water quality.
Visitors can spread invasive plant seeds and pathogens on muddy footwear.
Remaining on designated trails protects both the landscape and other hikers.
Leave plants, rocks, cultural objects, and other natural materials where they are.
Do not carve bamboo, stack rocks, enter restricted waterways, or create informal paths toward waterfalls.
The goal is to experience Kīpahulu without leaving evidence of your visit behind.
🌺 A Hawaiian Cultural Landscape
Kīpahulu is not simply a collection of scenic natural attractions.
Native Hawaiians lived within and cared for this landscape for generations.
Streams supported agriculture and daily life while connecting mountain environments with coastal communities.
Traditional Hawaiian understanding of water included a deep awareness of its power.
The proverb he wai makamaka ʻole conveys the idea that water recognizes no friend.
In other words, water does not make exceptions.
A stream that nourishes people and ecosystems can become destructive during a flood.
That lesson remains directly relevant to visitors standing beside Kīpahulu’s waterfalls today.
Respecting water means appreciating both its beauty and its power.
🌄 Are Haleakalā’s Waterfalls Worth Visiting?
The waterfalls of Haleakalā National Park are absolutely worth visiting.
Waimoku Falls alone would justify the Pīpīwai Trail, but the route offers much more than one destination. Makahiku Falls appears early in the hike, the trail passes an enormous banyan, bamboo surrounds long sections of boardwalk, and freshwater streams provide glimpses into native Hawaiian ecosystems before Waimoku finally appears beneath a towering cliff.
Closer to the coast, the Pools of ʻOheʻo demonstrate how these mountain streams continue downward until they meet the Pacific.
Together, these places reveal the role water plays in shaping Haleakalā.
The same volcano that creates a barren, high-elevation crater also captures moisture from Pacific air and sends streams cascading through tropical forest thousands of feet below.
That contrast is part of what makes Haleakalā National Park extraordinary.
Visitors who explore only the summit see just one side of the park. Following the waterfalls through Kīpahulu reveals another: green, humid, powerful, and continually shaped by moving water.
🔗 Related Articles
- Haleakalā National Park
- Haleakalā National Park’s Bamboo Forest
- Witness the Majestic Sunrise at Haleakalā National Park Summit
📚 Sources & Further Reading
- National Park Service — Hiking in Haleakalā National Park
- National Park Service — Short Hike to Makahiku Falls
- National Park Service — Kīpahulu District
- National Park Service — Pools of ʻOheʻo
- National Park Service — Alerts & Conditions
- National Park Service — Safety
- National Park Service — Plants
- National Park Service — Kīpahulu Moku
- National Park Service — Haleakalā National Park
