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Fern Grotto
Fern Grotto

Fern Grotto Tours and Activities

83 Reviews
Free admission

Kauai’s Fern Grotto is a fern-covered lava cave on the south fork of the Wailua River. Once off-limits to all but Hawaiian royalty, the Fern Grotto is now accessible to visitors, but only by boat. The grotto acts like an amphitheatre, and musicians are drawn to the site for its incredible natural acoustics.

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Highway 56, Lihue, 96766
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Best of Kauai Tour by Land, River and Optional Air

Best of Kauai Tour by Land, River and Optional Air

Spend a whole day exploring the best of Kauai’s beauty and culture on a tour combining land, water, and aerial sightseeing. Skip the car rental and let a local driver and guide show you the Garden Isle’s top sights, from romantic Hanalei Bay and the Kilauea Lighthouse to a bird sanctuary and historic sugar cane plantations. Catch a boat up the Wailua River to the Fern Grotto for a traditional hula show, and upgrade to soar over the entire island on a fixed-wing airplane tour.
  • 6 hours
  • Free Cancellation
  • Taking safety measures
Taking safety measures


Frequently Asked Questions

The answers provided below are based on answers previously given by the tour provider to customers’ questions.
Should I book Fern Grotto tickets in advance?
We recommend booking e-tickets ahead of time to secure your spot since Fern Grotto can get crowded. If you book with Viator, you can cancel at least 24 hours before the start date of your tour for a full refund. See all 1 Fern Grotto tickets and tours on Viator.
How much does it cost to visit Fern Grotto 2021?
Currently, an entrance ticket to Fern Grotto costs USD 183.55. Guided Fern Grotto tours start around USD 183.55 per person. See all 1 Fern Grotto tickets and tours on Viator.
What's the best way to experience Fern Grotto?