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We’re committed to helping you feel confident as you get back out there. Check out our flexible cancellation policies and learn what steps operators are taking to keep you safe. As conditions evolve, check local regulations for the latest information.

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Underwater Adventures on Kauai

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185 Reviews
Underwater Adventures on Kauai
Ringed by beaches, coral reefs, and sea caves, Kauai offers plenty of places to explore the Pacific. Calm, shallow bays are ideal for swimming and beginner surfing, while the reefs that line the dramatic Na Pali Coast boast some of Hawaii’s best snorkeling. Read on for the top ways to get wet on the Garden Isle.

Snorkel off Kauai’s Best Beaches
Clear, shallow beaches across Kauai welcome snorkelers of all experience levels, and near-shore reefs allow you to swim out to some top snorkeling spots. Try Tunnels Beach, Anini Beach, and Hanalei Bay on the North Shore, or Lawai Beach near Koloa on the South Shore. Guided tours take you to the best locations (which varies depending on ocean conditions) and include gear rental.

Sail Along the Na Pali Coast
Towering above Hawaii's northwestern coast, the emerald cliffs and deep valleys of Na Pali are best seen from the water. Explore the shoreline both above and below the surface on a combo sailing and snorkeling cruise. Catamaran cruises offer plenty of space to stretch out, while nimble rafts can dart in and out of sea caves. 

Learn to Surf on Hanalei Bay
A sweeping, palm-fringed crescent on Kauai’s North Shore, Hanalei Bay boasts ideal conditions for beginning surfers. Sign up for a lesson that includes surfboard rental, and practice standing up on the beach before paddling out into the calm waves to put your new moves into action. 

Swim in Waterfall Pools
You don't have to head out to sea to cool off on Kauai. The island’s lush interior is dotted with dozens of waterfalls that pour into natural swimming pools for a wild, refreshing soak. Many waterfalls can only be reached by hiking or kayaking; to see them without the guesswork, join a guided tour. 

Kayak Down the Legendary Wailua River
Considered sacred by native Hawaiians, the Wailua River snakes from Wailua on the East Shore through a tropical state park and a leafy lava cave known as Fern Grotto. Hear ancient legends while paddling down the river on a guided kayak tour. Many tours also stop at Opaekaa Falls or Uluwehi Falls (Secret Falls) for a swim.
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Kauai Tours & Activities (7)
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Free Cancellation:Get a full refund up to 24 hours in advance on most experiences.See Details
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Na Pali Coast Kauai Snorkel and SailSailing

Na Pali Coast Kauai Snorkel and Sail

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Experience the wild beauty of Kauai’s breathtaking Na Pali Coast on this sailing and snorkeling cruise from Port Allen. Witness the ‘Eighth Natural Wonder of the World’ the way it was meant to be seen — from the water. Get a fantastic perspective on towering emerald sea cliffs, sparkling waterfalls and remote beaches from the deck of a well-equipped catamaran, and explore the island’s vibrant underwater world during a snorkeling stop. An included buffet lunch and entertaining legends shared by the captain and crew make this an unforgettable Hawaiian adventure.
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  • 5 hours
  • Free Cancellation
  • Taking safety measures
From  
$192.47 
From  
$192.47 
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  • 5 hours
  • Free Cancellation
  • Taking safety measures

Hanalei Bay Kayak and Snorkel TourSnorkeling

Hanalei Bay Kayak and Snorkel Tour

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Explore the tropical waters of the Hanalei River and Hanalei Bay on this guided kayak and snorkeling tour. Paddle through the lush tropical surroundings as you make your way down the Hanalei River out into the open Hanalei Bay, where you can glimpse the famous cliffs of Makana Peak (also known as Bali Hai). Snorkel through the marvelous underwater world of the Bay Reef Lagoon, home to sea turtles and brightly colored tropical fish.
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  • 4 hours 30 minutes
  • Free Cancellation
From  
$108.99 
From  
$108.99 
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  • 4 hours 30 minutes
  • Free Cancellation

Guided Kayak Adventure on the Wailua RiverKayaking

Guided Kayak Adventure on the Wailua River

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Embark on a Garden Isle adventure with a half-day kayak trip on Kauai’s legendary Wailua River. Paddle through lush tropical landscape with a guide, passing a traditional Hawaiian village and learning about the river’s ancient, sacred history along the way. Feel like an island explorer as you hike to a sparkling waterfall, and keep your energy up with a riverside picnic lunch.
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  • 5 hours 30 minutes
  • Free Cancellation
From  
$93.99 
From  
$93.99 
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  • 5 hours 30 minutes
  • Free Cancellation

Ni'ihau and Na Pali Coast Super Snorkel CruiseDay Cruises

Ni'ihau and Na Pali Coast Super Snorkel Cruise

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Uncover the ancient legends and dramatic landscapes of the Na Pali Coast and the  ‘Forbidden Island’ of Ni’ihau on this sailing and snorkeling adventure. Cruise alongside the towering emerald spires and remote beaches of Kauai’s breathtaking, rugged shore in a state-of-the-art catamaran, and snorkel among native marine life in the reefs just off Ni’ihau’s mysterious shores. Hear tales of Hawaiian history and mythology from the friendly crew, and enjoy a delicious buffet lunch onboard.
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  • 7 hours
  • Free Cancellation
  • Taking safety measures
From  
$256.99 
From  
$256.99 
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  • 7 hours
  • Free Cancellation
  • Taking safety measures

Kauai Learn to Surf Lesson - Private & Group LessonsSports Lessons

Kauai Learn to Surf Lesson - Private & Group Lessons

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Learn to surf Kauai’s famous waves with this 2-hour surf lesson on the shores of beautiful Hanalei Bay. Your instructor, a local surfing expert, will teach you fundamentals of paddling, reading the waves and standing up. It’s a great introduction to surfing for beginners, and group size limited to four people to ensure a personalized experience. Toward the end of your lesson, enjoy free time in the mellow waters of Hanalei Bay to practice your new surf skills.
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  • 1 hour 30 minutes
  • Free Cancellation
From  
$78.12 
From  
$78.12 
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  • 1 hour 30 minutes
  • Free Cancellation

SeaFun SnorkelSnorkeling

SeaFun Snorkel

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Come face-to-face with colorful Kauai marine life at one of the South Shore’s best snorkeling beaches. On this family-friendly tour from Koloa, splash into clear water that's just the right depth for exploring coral gardens teaming with fish and turtles. Beginning snorkelers can find their sea legs using handled surfboards to easily stay afloat while viewing the fish.
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  • 4 hours
  • Free Cancellation
From  
$91.29 
From  
$91.29 
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  • 4 hours
  • Free Cancellation

Hidden Valley Falls Kayak and Kauai Hike AdventureHiking

Hidden Valley Falls Kayak and Kauai Hike Adventure

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Kayak, hike and canoe through the heart of Kauai’s lush jungles on a 4.5-hour adventure to Hidden Valley Falls. Paddle past trailing vines and enjoy sweeping views of the Haupu Mountains as you explore the Hule’ia River by kayak, then follow a shady .75-mile (1.2-km) forest trail to a backcountry waterfall. Cool off in a swimming hole beneath the falls, listen to the jungle chorus of tropical birds, then board a motorized, twin-hulled Hawaiian canoe to retrace your path down the tranquil Hule’ia.
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  • 4 hours 30 minutes
  • Free Cancellation
From  
$124.61 
From  
$124.61 
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  • 4 hours 30 minutes
  • Free Cancellation