What it is
Ali'i Kayaks is a family-owned tour operator based in Kapaʻa that specializes in guided kayak and hiking tours on the Wailua River. Their signature offering is a tour to Uluwehi Falls, popularly known as Secret Falls. The company is one of the original state-permitted commercial operators for this route. The tour combines a paddle on the river, historically significant as the "Valley of the Royalty," with a rainforest hike to the 120-foot waterfall.
Visitor experience
The primary tour is a five-hour excursion that involves a four-mile round-trip paddle and a two-mile round-trip hike. The experience begins with a paddle up the North Fork of the Wailua River, during which local guides share cultural history, legends of the aliʻi (Hawaiian royalty), and information about the native flora and fauna.
After landing the kayaks, guests hike through the rainforest to Uluwehi Falls. This portion of the trip is known for being very muddy and slippery, with two stream crossings. The destination is a 120-foot waterfall with a pool at its base where visitors can swim. The company is noted for maintaining smaller group sizes, which allows for more interaction with the guides.
The tour includes all necessary equipment (kayaks, paddles, life vests, dry bags), walking sticks for the hike, and a deli-style lunch with build-your-own sandwiches, chips, cookies, and water.
Logistics
- Location: Check-in is at the company's office at 180 Wailua Rd, Kapaʻa, located at the Wailua River Marina.
- Duration: The tour is approximately 5 hours long, making it a significant half-day activity.
- Schedule: Tours operate Monday through Friday only. Check-in time is 8:15 AM. The company is closed on weekends.
- Cost: As of early 2026, the tour costs $125 per person, plus tax.
- Reservations: Advance reservations are required and can be made online or by phone. Booking several weeks in advance is recommended, particularly during peak travel seasons.
- Parking: Parking is available at their location, but space can be limited.
- What's Provided: Tandem sit-on-top kayaks, paddles, personal flotation devices (PFDs), a shared dry bag per kayak, walking sticks, and lunch.
- What to Bring: Visitors should wear a swimsuit and bring water-friendly shoes with good grip (no flip-flops or Crocs allowed on the trail), sunscreen, a hat, insect repellent, a towel, and a waterproof camera. A change of clothes for after the tour is recommended.
Safety and cautions
- Physical Requirements: This is a moderately strenuous activity. Participants must be capable of paddling for approximately 90 minutes and hiking two to three miles on uneven, slippery, and muddy terrain.
- Health Restrictions: The tour is not recommended for individuals with back, hip, or knee problems, recent surgeries, or those who are pregnant. The minimum age for participants is five years old.
- Trail Conditions: The hiking trail to the falls is almost always muddy and involves walking on slippery rocks and roots. The stream crossings can have strong currents, especially after heavy rain.
- Weather: Tours operate rain or shine. However, the company monitors weather and river conditions closely and will cancel tours if there is a risk of flash flooding or other dangerous conditions. A full refund is issued if the operator cancels the tour.
- Facilities: There are no restrooms available on the river or along the hiking trail. Visitors should use facilities before checking in.
Editorial take
- Who Should Prioritize It: Active travelers, including families with children over five, who are looking for a classic Kauaʻi adventure that combines physical activity with cultural and natural history. It is an excellent fit for first-time kayakers who would benefit from a guided experience and for visitors who appreciate smaller, more intimate tour groups.
- Who Should Skip It: Individuals with mobility issues, joint problems, or a low tolerance for mud and strenuous activity should avoid this tour. It is also not suitable for those on a tight budget or travelers whose itineraries are limited to weekends, as the company does not operate on Saturday or Sunday.
- Not to be Confused With: While multiple companies offer tours to Uluwehi "Secret" Falls, Ali'i Kayaks distinguishes itself with a focus on smaller groups and cultural interpretation, differentiating it from more purely adventure-focused operators like Kayak Wailua. The falls themselves are a public destination accessible to several tour groups, so the location can be busy.
Source notes
- Ali'i Kayaks Official Website: The primary source for tour details, pricing, schedule, and what is included.
https://aliikayaks.com/wailua-river-and-secret-falls-kayak-hiking-tour/
- Ali'i Kayaks FAQ Page: Provides specific policies on cancellations, weather, and participant requirements.
https://aliikayaks.com/faq/
- TripAdvisor - Ali'i Kayak Tours: Offers recent visitor reviews that provide context on guide quality, trail conditions, and overall experience.
https://www.tripadvisor.com/Attraction_Review-g60616-d1146313-Reviews-Ali_i_Kayak_Tours-Kapaa_Kauai_Hawaii.html
