Wailua River
Wailua River is Kauai's only navigable river and one of Hawaii's most scenic waterways. Fed by high rainfall from Mount Waialeale and cascading waterfalls, it flows through lush tropical valleys steeped in Hawaiian history. Visitors can explore the river via boat tour, kayak, or canoe, with highlights including Fern Grotto, ancient heiau, and vibrant jungle vistas.
Wailua River, Kauai
The Wailua River on Kauai is the only navigable river in the entire state of Hawaii. It is fed by two main waterfalls. Rains from Mount Waialeale, one of the wettest locations on Earth, with an abundant 480 inches (12,192 mm) of rain per year, also help to feed the river.
For those wanting a bit of a challenge on their Kauai vacation, a trip down the river to the legendary Fern Grotto is a wonderful way to see the beauty of the natural habitat of the "Garden Isle" up close. You can travel on the river by kayak or canoe.
Boat tours are also available and will take you to Fern Grotto as well. The boats are open-air and guarantee a 360-degree view of all the beautiful scenery. The luxuriant river valley once served as the capital of ancient Kauai. It was held to be a sacred place for the island’s "ali'i," or royalty.
Key Features of Wailua River
- Only navigable river in Hawaii: Offers boat, kayak, and canoe access through scenic valleys
- Fed by waterfalls and Mount Waialeale: Source of constant water flow and vibrant vegetation
- Fern Grotto tours: Popular boat excursions lead to this romantic lava cave covered in ferns
- Rich cultural history: Once the political and spiritual center for Kauai's ali'i (royalty)
- Recreational hub: Ideal for nature lovers, kayakers, birdwatchers, and photographers
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Frequently Asked Questions
Can I kayak on the Wailua River?
Yes, kayaking is a popular way to explore the Wailua River. Guided tours are available, or you can rent a kayak and paddle at your own pace.
What is Fern Grotto, and how do I get there?
Fern Grotto is a lava cave overgrown with hanging ferns, accessible by boat or kayak tour along the Wailua River.
Where does the Wailua River begin and end?
It originates from Mount Waialeale and flows eastward into the Pacific Ocean at Wailua Bay.
What are the best spots to view the river?
The lookout near Poliahu Heiau and the Wailua River State Park offer scenic views of the river and surrounding valley.