In short
- Adult boat tickets are $35.
- Child boat tickets (ages 2-12) are $17.50.
- State park fees add $5 per person and $10 per vehicle.
In this article
Planning your budget for a Wailua River cruise is straightforward. You will pay the boat operator for the ride and the State of Hawaii for park access.
How much are Fern Grotto boat tour tickets?
Adult tickets cost $35, and child tickets cost $17.50.
Smith's Kauai operates the primary commercial riverboats to the grotto. Children aged 2 to 12 qualify for the child rate. The 90-minute round-trip cruise includes live Hawaiian music and storytelling.
How much are Wailua River State Park fees in 2026?
Non-residents must pay $5 per person to enter and $10 per vehicle to park.
These fees are required as of February 2026. You pay them directly at Wailua Marina State Park. The state park strictly enforces these fees for all independent visitors.
Do Hawaii residents pay state park fees?
No, Hawaii residents receive free entry and parking.
Local residents do not pay the $5 entrance fee or the $10 parking fee. You still need to purchase a boat ticket for the river cruise.
How much is a cruise ship excursion to the Fern Grotto?
A guided shore excursion with port pickup starts from $109.00.
This option is designed for cruise passengers. The tour lasts three and a half hours and includes air-conditioned transport.
Are combo tours available for the Fern Grotto?
Yes, full-day island tours that include the boat ride start from $278.54.
These 10-hour tours pick you up at your hotel. They include the river cruise, Waimea Town, and other local stops. Tour prices change based on the provider.
How do I pay the Wailua River State Park fees?
You must use a credit card to pay your state park fees.
The parking and entry payment systems do not accept cash. Bring a valid credit card when you arrive at Wailua Marina.
Questions travellers ask
Is the Fern Grotto boat tour wheelchair accessible?
The path to the grotto is paved, but boarding the boat requires navigating six steps. Accessibility Guide
Can I kayak to the Fern Grotto instead of paying for a tour?
No. Independent kayakers can paddle the river, but they are strictly prohibited from accessing the Fern Grotto landing directly.
Do I need to check in early for my boat tour?
Yes. Check in 30 minutes early to secure a good seat on the boat. The boat is spacious and offers excellent views from all angles.
