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Fern Grotto
Fern Grotto

Fern Grotto Tours and Activities

star-5
97 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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Kauai ATV Waterfall Tour
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Kauai ATV Waterfall Tour

star-5
284
Swap sightseeing by bus for a thrilling ATV tour that takes you places other vehicles cannot reach. This tour will get you up close and personal with the South Side of Kauai while racing across the landscape, and through several different island climates, in a Polaris RZR 1000 UTV. Bring swimwear and you can cool off with a swim in a waterfall.
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  • 4 hours
  • Free Cancellation
From
$162.30
From
$162.30

Na Pali Sunset & Sightsee Boat Tour
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Na Pali Sunset & Sightsee Boat Tour

star-5
553
Experience the breathtaking beauty of Kauai’s Napali Coast during the most romantic time of day on this sunset dinner cruise. Feel the fresh island breeze while cruising alongside towering cathedral spires, emerald valleys, waterfalls, and sea caves aboard a deluxe sailing catamaran. Enjoy a delicious onboard buffet dinner complete with Mai Tais, beer, wine, and fresh juices, and toast the end of another day in paradise with a glass of champagne as the golden hues of sunset wash across this legendary landscape.
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  • 3 hours 30 minutes
From
$183.35
From
$183.35

Kauai's Ultimate Guided Shore Snorkeling Adventure
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Kauai's Ultimate Guided Shore Snorkeling Adventure

star-5
149
Avoid crowds and embark on a Kauai snorkeling tour that limits group size to six people. Head for Kauai’s pristine south shore reefs to see tropical fish, sea urchins, and sea mammals. You may also see a turtle nesting on the beach or a Hawaiian monk seal basking in the sun.
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  • 2 hours
  • Free Cancellation
From
$101.71
From
$101.71

LUCKY LADY - Deluxe Na Pali Morning Snorkel Tour
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LUCKY LADY - Deluxe Na Pali Morning Snorkel Tour

star-4.5
338
The Na Pali coast is one of the most spectacular sights in Kauai. The best way to see it is from the water, so join this catamaran cruise for unbeatable views of lush green valleys, towering spires, jagged sea cliffs, and wildlife such as dolphins and sea turtles, as well as time for snorkeling and swimming. Includes a continental breakfast, buffet lunch, and drinks.
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  • 5 hours 30 minutes
  • Free Cancellation
From
$210.82
From
$210.82

Best of Kauai Tour by Land, River and Optional Air

Best of Kauai Tour by Land, River and Optional Air

star-4.5
97
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.
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  • 6 hours
  • Free Cancellation
From
$183.55
From
$183.55

Koloa Zipline
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Koloa Zipline

star-5
1659
Get a new perspective on Kauai as you soar through lush forests and over the Waita Reservoir on the island’s longest ziplines. While cruising across the 8-track course near Koloa, hang on to the handlebars or try some more daring acrobatic stunts with the hands-free ‘Flyin' Kauai'an’ harness.
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  • 3 hours
  • Free Cancellation
From
$166.43
From
$166.43

RAFT ADVENTURE - Na Pali 1/2 Day Snorkel
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RAFT ADVENTURE - Na Pali 1/2 Day Snorkel

star-5
510
Explore the dramatic cliffs and crystalline waters of Kauai’s Na Pali Coast on a half-day snorkeling adventure. Cruise along the spectacular coastline aboard a motorized raft, stopping to splash into the clear waters and snorkel among native marine life at one of Kauai’s best coral reefs. Traveling by raft allows the flexibility to navigate the rugged sea caves and waterfalls that dot the spectacular Na Pali shoreline. A deli lunch and beverages are included on this small-group tour.
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  • 5 hours 30 minutes
  • Free Cancellation
From
$189.20
From
$189.20

Skip the Line: Princeville Botanical Gardens Tour and Chocolate Tasting Ticket

Skip the Line: Princeville Botanical Gardens Tour and Chocolate Tasting Ticket

star-5
149
Indulge a passion for both nature and chocolate on this tropical tasting tour of Princeville Botanical Gardens in Kauai. Explore the plants and flowers that thrive at different elevations of the island on a guided tour of the garden’s terraces, creek beds, and valley floor, stopping along the way to taste fresh Hawaiian fruit and honey. Rest your feet in a shady outdoor tasting area as you sample single-origin gourmet chocolates from around the world and learn how cocoa beans are transformed into delicious chocolate products.
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  • 3 hours
  • Free Cancellation
From
$91.29
From
$91.29

Entire Kauai Island Air Tour
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Entire Kauai Island Air Tour

star-5
411
Soar over the entire Garden Island for unforgettable views on this air tour of Kauai. From aboard an aircraft designed for sightseeing, soak up breathtaking views of natural attractions like Waimea Canyon, Opaekaa Falls, the rugged Na Pa Coast, and Mt Waialeale — the wettest spot on earth. Your experienced pilot provides informative narration during this thrilling flight.
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  • 1 hour 10 minutes
  • Free Cancellation
From
$145.00
From
$145.00

Kayaking and Adventure Tour

Kayaking and Adventure Tour

star-5
136
This is a Kayaking/Hiking adventure for you and your family. We go at our own pace, we are able to explore all that the river has to offer like true secret falls. If the weather and conditions permits there are more places to explore. Your guide is a naturalist and photographer, so you will have someone with you capturing all your precious memories. With this reservation you will receive 5 free photos, possibly more if you write a review about your experience in a timely manner, then you will have a link sent to you where you can have access to all the photos from the shoot for a small fee per photos..Please remember to bring good shoes for hiking like water shoes, slippers will not work! For those who love photos and NO crowds, please consider our special photographic adventure tour down the river at 3:30. We will have the whole beautiful location to ourselves, which will make for a beautiful photographic experience. All the pictures for the 3:30 group will be perfect and free!
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  • 4 hours
  • Free Cancellation
From
$139.00
From
$139.00

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Frequently Asked Questions
The answers provided below are based on answers previously given by the tour provider to customers’ questions.
Q:
Should I book Fern Grotto tickets in advance?
A:
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.
Q:
How much does it cost to visit Fern Grotto 2021?
A:
Currently, an entrance ticket to Fern Grotto costs USD 91.29. Guided Fern Grotto tours start around USD 91.29 per person.
Q:
What''s the best way to experience Fern Grotto?