One of the easiest hikes to experience a beautiful waterfall is located just outside of Hilo on the Big Island.

Rainbow Falls
Rainbow Falls is a stunning waterfall located within Wailuku River State Park, just a short drive from downtown Hilo. Named for the rainbows that often appear in the mist of the falls, Rainbow Falls is a must-visit destination for anyone exploring the Big Island. The waterfall cascades over a lava cave into a natural pool below, surrounded by lush tropical vegetation and towering trees. Visitors can marvel at the sheer power and beauty of the falls from several vantage points along the viewing platforms.
Rainbow Falls Hawaii Hike
In addition to admiring the waterfall from the viewing platforms, visitors can also explore the surrounding hiking trails to get a closer look at Rainbow Falls and its natural surroundings. The Rainbow Falls Hawaii Hike is a relatively short and easy hike that takes visitors through the lush rainforest and along the banks of the Wailuku River. (Some folks might not even call it a hike; it’s more like taking a walk to Rainbow Falls.) Along the way, hikers or walkers can enjoy breathtaking views of the waterfall, as well as opportunities to spot native wildlife and plant species.
Trail Highlights
- Lush Rainforest: The trail winds its way through dense rainforest vegetation, with towering trees, ferns, and bamboo groves creating a serene and tranquil atmosphere.
- Wailuku River: The trail follows the banks of the Wailuku River, offering hikers the chance to dip their toes in the cool, refreshing waters and take in the sights and sounds of the rushing river.
- Scenic Overlooks: Along the trail, hikers will find several scenic overlooks that provide stunning views of Rainbow Falls from different angles. These viewpoints offer the perfect opportunity to capture photos of the waterfall and its surroundings.

Tips for a Successful Hike
- Wear sturdy hiking shoes with good traction, as the trail may be muddy or slippery in some areas.
- Apply sunscreen and insect repellent to protect against the sun and bugs.
- Stay on designated trails and respect the natural environment by avoiding trampling vegetation or disturbing wildlife.
- Viewing Waiānuenue only requires parking in the area described above and walking around the area.
- There’s a short trail to the left of the falls leading to a large banyan tree near the top of the falls.
- The overlook for Boiling Pots is also easily accessible.
- If you decide to visit the river itself, be aware that there are no maintained trails and flash floods can be very dangerous. Unfortunately, people die here every year. So use your judgment and be cautious.
How to Get to Rainbow Falls Hike
- From Hwy 11, head towards Hilo and Hwy 19.
- Cross the steel bridge and turn onto Waianuenue Ave. / Hwy 200.
- Drive 1.5 miles and stay to the right on Waianuenue Ave. as Hwy 200 veers left.
- Shortly after, turn right onto Rainbow Drive.
- Continue until you reach the Rainbow Falls parking lot on the right.
- To find Boiling Pots and Pe’epe’e Falls, keep going on Rainbow Drive.
- Turn right onto Pe’epe’e Falls St.
Frequently Asked Questions
How long is the Rainbow Falls Hawaii Hike?
The Rainbow Falls Hawaii Hike is approximately 0.6 miles round-trip, making it a relatively short and easy hike suitable for all ages and fitness levels.
How long does it take to hike to Rainbow Falls?
The hike to Rainbow Falls typically takes about 20 to 30 minutes each way, depending on hiking pace and the amount of time spent exploring the waterfall and surrounding area.
Is the trail suitable for children?
Yes, the Rainbow Falls Hawaii Hike is suitable for children, although parents should exercise caution and ensure that children are properly supervised near the waterfall and along the trail.
Are dogs allowed on the trail?
Yes, dogs are allowed on the Rainbow Falls Hawaii Hike, but they must be kept on a leash at all times and owners are responsible for cleaning up after their pets.
Are there restroom facilities near Rainbow Falls?
Yes, there are restroom facilities located near the Rainbow Falls viewing area, as well as picnic tables and parking areas for visitors’ convenience.
Is swimming allowed at Rainbow Falls?
Swimming is not permitted at Rainbow Falls, as the waterfall and surrounding area can be dangerous due to strong currents and slippery rocks. Visitors are encouraged to admire the waterfall from designated viewing areas and enjoy the natural beauty of the surroundings safely.
Is there an entrance fee to access Rainbow Falls?
No, there is no entrance fee to access Rainbow Falls or the surrounding Wailuku River State Park. The waterfall and hiking trails are open to the public and free to explore.
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