Wailua River

The Basics

The best way to soak in the natural beauty of the Wailua River is from the water itself, and there are several options to do so. Many travelers paddle the waters by kayak; these trips often include a short hike to a waterfall for swimming. It’s also possible to explore by stand-up paddleboard or outrigger canoe. More comprehensive island tours sometimes include an open-air boat trip along the Wailua River to the Fern Grotto, a spectacular lava rock cave surrounded by draping ferns. Those traveling by car can follow the north side of the river along Kuamoo Road (Highway 580).

Things to Know Before You Go

• The Wailua River offers outdoor recreation for a broad range of travelers.

• Don’t forget to bring along sunscreen, sunglasses, and hat, as not all portions of the river are shaded.

• Wear comfortable shoes suitable for walking over uneven surfaces.

• All state park facilities are ADA accessible.

How to Get There

The Wailua River enters the ocean on the island’s east coast, near the settlement of Wailua. Most visitors get to the river as part of a guided tour with included transportation from Kauai hotels.

When to Get There

The best time for outdoor adventure in Kauai is in fall (September to November) and spring (April to June) when the weather is at its best. Expect frequent showers during the winter peak season (December to March).

Cultural Significance of the Wailua River

The Wailua River is more than just a natural wonder. To ancient Hawaiians, it was considered one of the most sacred places on Kauai. At one time, seven differentheiau (temples) dotted its shores. Visitors can learn more at the Wailua Complex of Heiau, a National Historic Landmark and former hub of chiefly power.

How much is a Wailua River cruise?

That depends on the tour you pick. A range of Wailua River tours are available, from leisurely river cruises to active kayaking excursions; most last at least half a day or longer if paired with nearby attractions. Generally, prices begin around $100 per person for a shorter excursion and go up.

How long is a Wailua River cruise?

At a minimum, you’ll spend more than 3 hours on a Wailua River cruise—and if you decide to explore by kayak or pair your boat tour with visits to area attractions, you could spend the whole day. The river itself is around 20 miles (32 kilometers) long.

How long does it take to kayak the Wailua River?

If you plan to go on a kayaking tour of the Wailua River, set aside at least half a day—most tours begin at 5 hours and go up from there, depending on whether other nearby attractions (like the Secret Falls or the Fern Grotto) are visited.

Can you swim in the Wailua River?

While it is possible to swim in sections of the Wailua River, generally, the best way to discover it is by boat or kayaking tour—and then be rewarded with perfect swimming conditions later. Many tours stop at the Secret Falls, where an idyllic swimming hole awaits visitors.

How do I get to the Fern Grotto in Kauai?

The only way to reach the Fern Grotto—located at the beginning of the South Fork of the Wailua River—is by water. Many kayaking tours will stop at the site, and visitors can explore the area. Just don’t expect to enter the cave, which is sacred and off-limits.

Is kayaking the Wailua River worth it?

Yes, kayaking the River Wailua is worth it. The largest navigable river in the Hawaiian Islands, the Wailua River has long been considered a sacred landmark by Native Hawaiians. It’s also famed for its slow-moving beauty and offers access to popular attractions like the Secret Falls and Fern Grotto.

Ways to explore

The best way to soak in the natural beauty of the Wailua River is from the water itself, and there are several ways to go. Many travelers paddle the waters by kayak; these trips often include a short hike to a waterfall for swimming. It’s also possible to explore by stand-up paddleboard or outrigger canoe. More comprehensive island tours sometimes include an open-air boat trip along the Wailua River to the Fern Grotto, a spectacular lava rock cave surrounded by draping ferns. Tours by small plane and helicopter also generally fly you over the river valley to admire its dense rainforest from above.

Accessibility

The Wailua River is inside the Wailua River State Park, where facilities are wheelchair accessible. Not all riverboat tours are accessible, though, so be sure to confirm before booking.

Age limits

Some boat and flightseeing tours have minimum age requirements for passengers; check in advance.

What to pack

Camera, waterproof bag (for water sports), sun hat

What to wear

Comfortable shoes, sunscreen, swimsuit (for water sports)

Not allowed

Camping, smoking, pets

Amenities

Restrooms, water fountains, picnic areas, concession stands

Address

The Wailua River enters the ocean on Kauai’s east coast, near the village of Wailua. Most visitors reach the river as part of a guided tour that includes transportation from Lihue and other main towns on the island.

Driving

On a car trip, you can skirt the north side of the river along Kuamoo Road (Highway 580). Tours of the river from the water generally depart from Wailua Marina in the Wailua River State Park, located along highway 56.

Public transportation

This isn’t an option for most of the sights and attractions along the river. Instead, join a tour that includes transportation from the island’s towns or hotels.

Best times to visit

Boat tours depart throughout the day, but most driving tours leave in the morning to catch the best light for viewing the waterfalls and other sights along the river.

Best days to visit

Popular points along the Wailua River, like Wailua Falls and Fern Grotto, can get busy on the weekends, so visit from Monday to Friday to avoid the crowds.

Best months to visit

Rainy days are more common on Kauai in the winter, while late spring through early fall brings clear weather and warm temperatures.