The best walks and hikes in Wailua River State Park
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2,683
hikers
51
hikes
Hiking in Wailua River State Park is centered around the Wailua River Valley and the Nounou Mountain ridge. The landscape features lush rainforests, the Wailua River, which is the only navigable river in Hawaiʻi, and several prominent waterfalls. Routes range from riverside paths, some requiring kayak access, to more strenuous ascents up Nounou Mountain, known as Sleeping Giant, which offers expansive views of the area.
Best hiking trails in Wailua River State Park
- The most popular hiking route is Uluwehi…
Last updated: April 27, 2026
5.0
(3)
209
hikers
3.13km
00:51
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(5)
27
hikers
7.27km
02:16
260m
260m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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5.0
(1)
14
hikers
3.03km
00:47
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
13
hikers
6.30km
01:38
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(6)
34
hikers
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Popular around Wailua River State Park
Tips from the Community
If the trail is wet, the climb is quite challenging. But the view at the top is 100% worth it. On the descent, you'll need to be sure-footed and able to hold on tight 😉.
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Unfortunately, a lot of plastic is washed away. Always collect some on your walk and dispose of it in a garbage can. This will save the lives of turtles and other marine animals that get caught in it or accidentally eat it. MAHALO
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Route from the east not too difficult on dry ground, some rock climbing at the end, but not over a precipice - perfect view
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Lydgate Beach Park is a nice family-friendly beach with a recreation area around it. The beach can be a good option for swimming and snorkeling, with two rock-enclosed natural lagoons with different species of tropical fishes. It’s a nice safe haven from the open ocean waves, making it a good place for beginner snorkelers. The recreation area provides picnic areas, ‘Kamalani’ playground, and restrooms, and there is also a lifeguard at the beach. This is a perfect spot to end the ride along Kapaa Bike Path and enjoy the facilities of the park.
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Lydgate Beach Park is a nice family-friendly beach with a recreation area around it. The beach can be a good option for swimming and snorkeling, with two rock-enclosed natural lagoons with different species of tropical fishes. It’s a nice safe haven from the open ocean waves, making it a good place for beginner snorkelers. The recreation area provides picnic areas, ‘Kamalani’ playground, and restrooms, and there is also a lifeguard at the beach. This is a perfect spot to end the ride along Kapaa Bike Path and enjoy the facilities of the park.
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Wailua Beach is among many beautiful beaches in Kauai, the beach has some rocks and fallen trees along the coast, and some nice waves, giving a nice wilderness vibe to it. This is a good beach for surfers, kiteboarders, and fishers, but not so recommended for swimming, as the beach has no lifeguard, but one option for those who want to swim is to find a small rock-protected pool on the north end of Wailua.
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Unfortunately it was empty for us 😢
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Frequently Asked Questions
Are there any easy, family-friendly hikes in Wailua River State Park?
Yes, the park offers several easier trails suitable for families. The Kuilau Ridge Trail is a great option, providing a gentle climb through lush forest scenery with rewarding views. It's a 5.8 km round-trip hike that is generally considered easy to moderate.
Can I hike to a waterfall in the park?
Absolutely. A popular adventure involves reaching Uluwehi Falls, also known as Secret Falls. This typically requires a combination of kayaking up the Wailua River followed by a hike. The Uluwehi Falls loop from Wailua is an easy 3.1 km trail through the rainforest that leads you to the beautiful waterfall.
How difficult are the trails on Sleeping Giant (Nounou Mountain)?
The trails on Nounou Mountain vary in difficulty. For a challenging ascent with rewarding views, consider the Chin of the Sleeping Giant – Nounou Trail Shelter loop from Wailua. This 8.9 km route is rated as difficult and takes you to the summit for panoramic vistas. There are also moderate options on the mountain for those seeking a less strenuous climb.
Is it possible to combine kayaking and hiking?
Yes, combining kayaking and hiking is one of the signature experiences in Wailua River State Park. The most common trip involves paddling up the Wailua River and then hiking to a waterfall like Uluwehi Falls (Secret Falls). You can rent kayaks or join guided tours that facilitate this unique adventure.
Are there any cultural or ancient sites I can see while hiking?
The Wailua River Valley is rich in Hawaiian history and is a National Historic Landmark. While hiking, you are in an area that contains ancient temples (heiau), places of refuge (puʻuhonua), and birthstones. While some trails pass near these areas, many of the main sites are best viewed from designated overlooks or via the river.
What are the parking options for the main trailheads?
Parking is available at several key locations, including overlooks for ʻŌpaekaʻa Falls and Wailua Falls, and at trailheads for the Sleeping Giant (Nounou Mountain) trails. Parking spots can fill up quickly, especially during peak hours, so arriving early is recommended.
Is there an entrance fee for Wailua River State Park?
There is generally no entrance fee for the park itself or for accessing the trailheads. However, activities like boat tours to the Fern Grotto or guided kayak tours will have associated costs. For the most current information on fees and park regulations, it's best to check the official Wailua River State Park website.
Can I swim in the waterfalls?
Swimming is possible at the base of some waterfalls, such as Uluwehi Falls (Secret Falls), and it's a popular way to cool off after the hike. However, you should always exercise caution. Water levels and currents can change, and rocks can be slippery. Swimming at the base of Wailua Falls is strongly discouraged due to dangerous conditions.
How many hiking trails are in Wailua River State Park?
There are over 40 different hiking routes to explore in and around Wailua River State Park. These range from short, easy walks to difficult mountain ascents, offering plenty of options for all fitness levels.
What do other hikers think of the trails in Wailua River State Park?
The area is highly regarded by the komoot community, with an average rating of 4.7 out of 5 stars. Hikers often praise the stunning rainforest scenery, the rewarding panoramic views from the ridges, and the unique experience of combining paddling with hiking to reach secluded waterfalls.
How accessible are the main waterfalls like Wailua Falls and ʻŌpaekaʻa Falls?
Both Wailua Falls and ʻŌpaekaʻa Falls are very accessible and do not require a hike. They can be viewed from dedicated scenic overlooks located just off the road, making them easy stops for visitors.
Most popular routes in Wailua River State Park
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