Wailua River State Park

Wailua, Kauai, Hawaii
Established 1959
1,083 acres

Wailua River State Park on Kauai encompasses lush rainforests, historic sites, and the only navigable river in Hawaii. Visitors can explore ancient Hawaiian temples (heiau), enjoy scenic boat tours, and view stunning waterfalls such as Opaeka‘a Falls, making it a hub for both recreation and cultural discovery.

Entrance Fee

Free

Visiting with Dogs

Dogs are not allowed at Wailua River State Park, including all trails and facilities. Service animals permitted.

Visitor Tips & Reviews

What Visitors Say

Visitors love Wailua River State Park for its lush scenery, kayaking, waterfalls, and historical sites like Fern Grotto, making it a favorite for nature lovers and families.

Tips from Visitors

  • Arrive early to avoid crowds and secure parking.
  • Bring insect repellent for comfort along trails.
  • Wear sturdy shoes for uneven terrain.
  • Respect cultural sites and posted signs.
  • Kayak rentals available for river exploration.
  • Pack water and snacks for your visit.

Amenities

RestroomsParkingPicnic AreasBoat RampInterpretive Signs

Nearby Attractions

Explore these attractions near Wailua River State Park:

  • Opaeka‘a Falls
    A picturesque 151-foot waterfall easily viewed from a roadside lookout within the park.
    1 mile away
  • Fern Grotto
    A lush, fern-covered cave accessible by boat tour along the Wailua River, famous for its unique acoustics and tropical beauty.
    2 miles away
  • Lydgate Beach Park
    A family-friendly beach with protected swimming areas and picnic facilities, located just south of the Wailua River mouth.
    2.5 miles away

Things to Do at Wailua River State Park

BoatingKayakingSightseeingPicnickingCultural Tours

Camping at Wailua River State Park

Camping is not available at Wailua River State Park; consider nearby county parks or private campgrounds.

Hiking Trails

Wailua River State Park offers scenic day hikes along lush riverbanks, with trails leading to beautiful waterfalls and ancient Hawaiian sites. Hikers enjoy the peaceful atmosphere, tropical vegetation, and opportunities to spot native birds. The trails are generally easy to moderate, making them suitable for families. Kayaking and boat tours are also popular, providing unique access to hidden gems like Fern Grotto and Secret Falls.

Nounou East (Sleeping Giant) Trail

Moderate

A scenic trail leading to panoramic views of the Wailua River Valley and the eastern coastline.

3.4 mi
2-3 hours
960 ft gain
Moderate difficulty

Kuilau Ridge Trail

Easy

A lush ridge hike offering views of the Makaleha Mountains and Wailua River basin.

3.6 mi
2 hours
640 ft gain
Easy difficulty

Opaeka‘a Falls Lookout Trail

Easy

A short, accessible trail to a viewpoint overlooking the beautiful Opaeka‘a Falls and Wailua River.

1,584 ft
15 minutes
30 ft gain
Easy difficulty

Wailua River Kayak & Hike to Secret Falls (Uluwehi Falls)

Moderate

A combined kayak and hiking route through lush rainforest to the stunning Secret Falls.

2 mi
3-4 hours
150 ft gain
Moderate difficulty

Directions

From Lihue, take Kuhio Highway (HI-56) north for about 6 miles. The park entrance is on the left, just past the Wailua River bridge.

Frequently Asked Questions

What activities can I do at Wailua River State Park?

Popular activities include kayaking, boating, hiking, and visiting historical sites like Fern Grotto and Opaeka‘a Falls. Guided tours are also available.

Are there any entrance or parking fees at Wailua River State Park?

There is no entrance fee for the park itself, but some attractions within the park, like Fern Grotto, may have separate fees. Parking is generally free.

Is swimming allowed in the Wailua River?

Swimming is not recommended due to strong currents and potential health risks. Most visitors enjoy the river by kayak, boat, or paddleboard instead.

Are there restroom and picnic facilities available?

Yes, there are restrooms and picnic areas at several locations within the park, including near Opaeka‘a Falls and the boat launch area.

Can I visit Fern Grotto on my own?

Fern Grotto is accessible only by boat. Most visitors reach it via guided riverboat tours, which depart regularly from the marina.

Is the park suitable for families with children?

Yes, Wailua River State Park is family-friendly, offering easy walks, scenic viewpoints, and safe picnic spots. Supervision is recommended near water and cliffs.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

View Gear Checklist →