The Best Big Island Ocean Activities
Discover your perfect Big Island ocean adventures
Top Ocean Activities On Big Island
Daytime and manta ray snorkeling, fun watersports, and more
You’ve come to the right place for all the best ocean activities on the Big Island. One of the most exciting experiences is to be in the ocean with Manta Rays. These gentle giants get up close and personal during night snorkel tours, and there’s nothing quite like it anywhere else on earth. What a fantastic gift idea for a special someone! Evening cruises include all the gear you need plus refreshments.
Humpback whales, dolphins, sea turtles, and more make for some great photo ops on a family-friendly whale watching cruise off the Kona Coast. The crew knows just where to look so that you won’t miss any splashdowns.
A variety of daytime snorkel trips will have you swimming among the diverse fish and colorful coral in the pristine waters off the Kona coast. A traditional outrigger canoe ride will take you back to the days of old Polynesia, or perhaps you prefer to book a private fishing boat where you keep what you catch. All gear comes included, but bring your camera for “the big catch” bragging rights.
Stand-up paddleboarding or kayaking on the Umauma River features a picnic lunch and plenty of time to go for a refreshing swim in the cool waterfall and crystal pools. Whatever you choose, nothing says Hawaii like spending time in (and on) the water.
Our Most Recommended Tours
We love the ocean, and Big Island holds some of our most favorite activities. First, we recommend going on a manta ray snorkel or dive. Itʻs the only place in Hawaii you can experience this. The Kona coast also has many Hawaiian spinner dolphins, so you should see them if you go out on a morning snorkel tour.
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Big Island Manta Ray Night Snorkel Tour
Hop in the ocean for a moonlight swim with manta rays! Put on a mask and snorkel and swim beside these graceful skates. Book this once-in-a-lifetime evening adventure now!
- All Snorkel Gear Included
- Snacks & Hot Drinks Included
- Moonlight Snorkeling
- Two Evening Cruise Times Available Daily
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Dolphin Watch & Deluxe Snorkel Adventure
The boat has a large spacious cabin area for lounging, relaxing, and sightseeing. On top is a sun deck for sunbathing, socializing, or just enjoying a beverage. The sun deck has a full bar for your convenience, changing rooms, restrooms, ample comfortable seating, and even fresh showers for after the swim.
- Double Deck 65' Catamaran
- Most popular tour
- 20' Water Slide
- Duration 4.5 Hours
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Submarine Dive Off Kona
An unforgettable 45-minute journey aboard an Atlantis 48-passenger submarine, as featured in National Geographic television specials, where guests explore a 25-acre natural coral reef and its marine inhabitants!
- 45-minute journey aboard
- A 48-passenger submarine
- An 18,000-year-old, 25-acre fringing coral reef
Big Island Daytime Snorkeling
Snorkeling along the Kona coast is magnificent. The clear waters and abundance of fish make for a beautiful swim. Go on some deluxe tours that will take you to multiple snorkeling spots for a wider variety of underwater experiences. Try the SNUBA too!
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Dolphin Watch & Deluxe Snorkel Adventure
The boat has a large spacious cabin area for lounging, relaxing, and sightseeing. On top is a sun deck for sunbathing, socializing, or just enjoying a beverage. The sun deck has a full bar for your convenience, changing rooms, restrooms, ample comfortable seating, and even fresh showers for after the swim.
- Double Deck 65' Catamaran
- Most popular tour
- 20' Water Slide
- Duration 4.5 Hours
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Captain Cook Snorkel – Afternoon Tour
A three-hour adventure cruise to explore the historic Kona coast, to Capt. Cook's Monument at Kealakekua Bay. Guests will snorkel at these premier marine sanctuaries viewing many species of fish, eels, turtles, and corals. The adventure continues as we head out to find the dolphins and whales.
- Expedition Adventure Rafts
- Small Groups 6 to 12
- From Keauhou Bay Pier
- Duration 3 Hours
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Kawaihae Wildlife Watch & Snorkel Cruise with Lunch
One of the few tours operating out of Kohala, this snorkel cruise includes a lot of wildlife plus a stop off-shore of one of the best beaches on the island.- Seeing Wildlife Is Guaranteed
- Choose Afternoon Or Morning Sail In Kohala
- Picnic Lunch & Non-Alcoholic Drinks
- 3 Hrs. 9AM or 1PM Daily Sail, Kawaihae Harbor
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Kona Coast Snorkel Tour
This 5-hour guided tour allows guests to discover remote locations along the Kona coast only accessible by boat, and have the opportunity to swim with abundant marine life native to the area.- 5-hour Snorkel Cruise
- See Dolphins & Abundant Marine Life
- Snorkel Gear Provided
- Stand-up Paddleboards Provided
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Kona Rafting Snorkel Adventure
Snorkel at the two best spots on the South Kona Coast. We will visit the famous Kealakekua and Honaunau Bays on this morning snorkeling cruise over 4-hours.- Snorkel In Two Great Locations
- All The Gear You Need Included
- Snacks, Tropical Fruit & Drinks
- 4 hrs. 7:30AM Daily, Keauhou Bay
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Waikoloa Snorkel Sail with Lunch
Start your tour with a pickup at the beach right near the Waikoloa resorts. Head straight out to some of the best spots along the coastline.- Safe And Fun Snorkeling Locations
- Beach Pickup At Anaehoomalu Beach
- Picnic Lunch And Drinks Included
- 3 Hrs. 9AM Daily Sail, Waikoloa
Big Island Manta Ray Snorkeling
One of the most extraordinary things to do in the ocean off the Kona coast is to snorkel or dive with Manta Rays. These harmless creatures are attracted to the lights shining in the water. Then, when they come to feed, they brush you as they pass by. Itʻs a fantastic feeling.
-
Big Island Manta Ray Night Snorkel Tour
Hop in the ocean for a moonlight swim with manta rays! Put on a mask and snorkel and swim beside these graceful skates. Book this once-in-a-lifetime evening adventure now!
- All Snorkel Gear Included
- Snacks & Hot Drinks Included
- Moonlight Snorkeling
- Two Evening Cruise Times Available Daily
-
Kona Manta Ray Night Dive
Take an amazing night dive to see manta rays feed near the lights shining into the darkness.
- A beautiful Hawaiian sunset
- Professional Guides
- Snacks are included
- 1 Scuba Dive is included
- See mantas about 85% of the time
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Manta Discovery Adventure
An incredible night time experience with incredible creatures that are amazingly gentle as they swoop and soar beneath the lights. This amazing experience will be remembered forever.- Great Experience For Ages 8+
- All The Gear You Need Included
- Snacks & Hot Tea
- 2.5 hrs. 6:30PM Daily, Keauhou Bay
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Manta Ray Night Snorkel
Join our knowledgeable and friendly crew for a night to remember the world-famous Manta Night Snorkel. Take a boat ride in the late afternoon along the Kona coast to the manta viewing site.
- Snorkel gear provided
- From Kona coast
- A thrilling experience
- See mantas about 85% of the time
-
Manta Ray Snorkel Tour
Watch wild manta rays feed and dance in the bright lights on this evening snorkel tour. Professional guides will help ensure a safe and unforgettable experience with these gentle giants.- Snorkel mask and wetsuit provided
- Swim with wild manta rays
- Includes hot drinks and snacks
- Departs right after sunset
-
90 Min Manta Ray Night Snorkel
Experience Hawaii’s most magnificent creatures up-close on our nighttime snorkel! Our professional guides help you get in the best possible viewing position to watch the Manta Rays dance around.- Snorkel & Mask, Close To Town
- Family Friendly, Ages 4 And Up
- Snacks & Hot Drinks Included
- 1.5 Hours, 6PM to 12AM Daily
Big Island Kayak & Watersports Tours
We encourage every guest to get out in the water. Go with a guide or rent some gear and tackle the waves on your own. Rent SUPs, kayaks, or go on a paddle in an outrigger canoe ride. We want you to enjoy the beaches, rivers, waterfalls, and more.
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Ziplining & Kayaking Tour
Enjoy 4 activities in one tour with this kayak, stand up paddle, swimming, and ziplining adventure pack! Sit down to a catered lunch by a waterfall after a fun filled day! Adventure operates daily.
- Ziplining, Swimming, Stand Up Paddling, & Kayaking
- Beautiful River & Waterfall
- Zipline, SUP & Kayak Gear Included
- Catered Picnic Lunch
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Day At The Beach
Visiting Kailua-Kona and need a beach chair, kayak or SUP for the morning, the day or the week. Let us know. We have all the best gear and snorkel equipment available too!- Surf, SUP, Snorkel, Chairs & More
- Access To Everything For 5 Hours
- All Ages Activities. Family Friendly
- Open Daily 8AM To 5PM Rentals
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Hawaiian Outrigger Canoe Rides
Feel the breeze and spot marine life as you ride and paddle an outrigger canoe. Check out more of the coast coast with your group as many hands make fast and light work!- Tour Max 6 Guests
- Traditional Canoe Ride
- Launch From Kailua-Kona
- 1 Hour Rides
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Kayak & Swim in the Umauma River
Enjoy a 3-hour river experience. Try kayaking or stand up paddling - or both! Go for a swim in the Umauma River. Then have a relaxing picnic lunch under the pavilion at the water’s edge before heading home.
- Picnic Lunch Included
- SUP & Kayak Gear Included
- Swim in the River
- Fun for All Ages
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Kealakekua Bay Kayak & Paddle Board Rentals
Did you want to explore Kealakekua Bay and the Captain Cook monument on your own? You can rent all the gear for pickup right at the bay. No need to transport it anywhere. We got you covered!- Single & Double Kayaks
- Stand Up Paddleboards
- Snorkel Gear Available
- Daily Rentals
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Midday Meander Kealakekua Bay Kayak
Enjoy an afternoon wandering around Kealakekua Bay on a kayak. We head over to the Captain Cook monument for some snorkeling and coastal exploration.- Kayak & Snorkel Gear
- Transportation From Kailua Kona
- Reusable Water Bottle Gift
- Guided 4hrs. 11:30AM Daily
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Morning Magic Kealakekua Bay Kayak & Snorkel
Go kayaking in the historic Kealakekua bay with a certified guide. You will hear stories of history, spot wild dolphins and turtles on this leisurely paddle around the bay.- Kayak & Snorkel Gear
- Transportation From Kailua Kona
- Lunch & Water (Bottle Gift)
- Guided 5hrs. 7AM Daily
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Paddleboard Tours & Lessons
Unsure about the SUP experience? We can help you with guided tour and lessons so you will feel comfortable stand up paddle boarding anywhere.- Advanced & Beginner Options
- Lessons Available Daily
- Launch From Kailua-Kona
- 1.5 Hour Tour Or Instruction
All Big Island Ocean Activities
Check out all our ocean activities and let us know what you want to do. We are adding new ocean activities all the time so check back with this list as you get closer to your vacation times. Remember, the most popular tours will sell out before you arrive in Hawaii.
-
Big Island Manta Ray Night Snorkel Tour
Hop in the ocean for a moonlight swim with manta rays! Put on a mask and snorkel and swim beside these graceful skates. Book this once-in-a-lifetime evening adventure now!
- All Snorkel Gear Included
- Snacks & Hot Drinks Included
- Moonlight Snorkeling
- Two Evening Cruise Times Available Daily
-
Dolphin Watch & Deluxe Snorkel Adventure
The boat has a large spacious cabin area for lounging, relaxing, and sightseeing. On top is a sun deck for sunbathing, socializing, or just enjoying a beverage. The sun deck has a full bar for your convenience, changing rooms, restrooms, ample comfortable seating, and even fresh showers for after the swim.
- Double Deck 65' Catamaran
- Most popular tour
- 20' Water Slide
- Duration 4.5 Hours
-
Submarine Dive Off Kona
An unforgettable 45-minute journey aboard an Atlantis 48-passenger submarine, as featured in National Geographic television specials, where guests explore a 25-acre natural coral reef and its marine inhabitants!
- 45-minute journey aboard
- A 48-passenger submarine
- An 18,000-year-old, 25-acre fringing coral reef
-
Sunset Dinner Cruise
Our luxurious, three-hour guided historical dinner cruise to Kealakekua Bay and Captain Cook’s monument will capture your imagination and reveal many secrets of the Big Island. Cruise 12 miles down the Kona Coast to Captain Cook’s monument while a local historian points out over 50 points of interest and historical sites.
- Everyday except Monday
- Spectacular Sunset Views
- Dinning, Dancing, Entertainment
- 65' Double Hull Catamaran
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Captain Cook Snorkel – Afternoon Tour
A three-hour adventure cruise to explore the historic Kona coast, to Capt. Cook's Monument at Kealakekua Bay. Guests will snorkel at these premier marine sanctuaries viewing many species of fish, eels, turtles, and corals. The adventure continues as we head out to find the dolphins and whales.
- Expedition Adventure Rafts
- Small Groups 6 to 12
- From Keauhou Bay Pier
- Duration 3 Hours
-
Kona Manta Ray Night Dive
Take an amazing night dive to see manta rays feed near the lights shining into the darkness.
- A beautiful Hawaiian sunset
- Professional Guides
- Snacks are included
- 1 Scuba Dive is included
- See mantas about 85% of the time
-
Kona Whale Watch Cruise
Enjoy a 2.5-hour family-friendly whale watching cruise off the Kona Coast. Tours operating daily out of Kona and snacks and drinks are included.
- Snacks and Drinks Included
- See Humpbacks Whales, Dolphins, Turtles & more!
- Family-Friendly Tour
- Knowledgeable Crew
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Kona Whale Watching Adventure
Spend an afternoon with Humpback whales on this 2.5 hour family friendly tour. Snacks and drinks will be provided.- See Whales in the Wild
- 2.5 hour tour along the Kona coast
- Snacks and drinks will be provided
- Check in: 12:15pm Return: 3:00pm
-
Manta Discovery Adventure
An incredible night time experience with incredible creatures that are amazingly gentle as they swoop and soar beneath the lights. This amazing experience will be remembered forever.- Great Experience For Ages 8+
- All The Gear You Need Included
- Snacks & Hot Tea
- 2.5 hrs. 6:30PM Daily, Keauhou Bay
-
Manta Ray Night Snorkel
Join our knowledgeable and friendly crew for a night to remember the world-famous Manta Night Snorkel. Take a boat ride in the late afternoon along the Kona coast to the manta viewing site.
- Snorkel gear provided
- From Kona coast
- A thrilling experience
- See mantas about 85% of the time
-
Manta Ray Snorkel Tour
Watch wild manta rays feed and dance in the bright lights on this evening snorkel tour. Professional guides will help ensure a safe and unforgettable experience with these gentle giants.- Snorkel mask and wetsuit provided
- Swim with wild manta rays
- Includes hot drinks and snacks
- Departs right after sunset
-
Kona Coast Private Fishing Trips
Book a private fishing boat for an adventure now! With three outings offered daily, choose the fishing time that works for you.
- Rods, Reels, Bait, and Gear Included
- Keep What you Catch
- Half Day, Full Day, and ¾ Day Fishing Tours Available
- 3 Times Available Daily
-
Kona Coast Snorkel Tour
This 5-hour guided tour allows guests to discover remote locations along the Kona coast only accessible by boat, and have the opportunity to swim with abundant marine life native to the area.- 5-hour Snorkel Cruise
- See Dolphins & Abundant Marine Life
- Snorkel Gear Provided
- Stand-up Paddleboards Provided
-
Kona Rafting Snorkel Adventure
Snorkel at the two best spots on the South Kona Coast. We will visit the famous Kealakekua and Honaunau Bays on this morning snorkeling cruise over 4-hours.- Snorkel In Two Great Locations
- All The Gear You Need Included
- Snacks, Tropical Fruit & Drinks
- 4 hrs. 7:30AM Daily, Keauhou Bay
-
90 Min Manta Ray Night Snorkel
Experience Hawaii’s most magnificent creatures up-close on our nighttime snorkel! Our professional guides help you get in the best possible viewing position to watch the Manta Rays dance around.- Snorkel & Mask, Close To Town
- Family Friendly, Ages 4 And Up
- Snacks & Hot Drinks Included
- 1.5 Hours, 6PM to 12AM Daily
-
Hawaiian Outrigger Canoe Rides
Feel the breeze and spot marine life as you ride and paddle an outrigger canoe. Check out more of the coast coast with your group as many hands make fast and light work!- Tour Max 6 Guests
- Traditional Canoe Ride
- Launch From Kailua-Kona
- 1 Hour Rides
-
Honokohau Harbor Manta Ray Night Snorkel
There is nothing like being in the water at night watching these majestic and harmless creatures, spin, make circles and feed with huge mouths right in front of you. They sometimes will even brush up against you and itʻs an odd feeling, yet awesome!- Guaranteed Manta Sightings Or Next Free
- All The Gear You Need Included
- Snacks And Hot Chocolate
- 2.5 hrs. 6:30PM Daily, Honokohau Harbor
-
Kayak & Swim in the Umauma River
Enjoy a 3-hour river experience. Try kayaking or stand up paddling - or both! Go for a swim in the Umauma River. Then have a relaxing picnic lunch under the pavilion at the water’s edge before heading home.
- Picnic Lunch Included
- SUP & Kayak Gear Included
- Swim in the River
- Fun for All Ages
-
Kona Shared Sportfishing Trips
Hop aboard for a fishing excursion off the Kona Coast. Book this small group fishing adventure today! With tours leaving multiple times a day, choose the fishing trip that works for you.
- Rods, Reels, Bait, and Gear Included
- You Catch it, You Keep It
- Half Day, Shared Fishing Tours
- Small-Group Tours Available Daily
-
Paddleboard Tours & Lessons
Unsure about the SUP experience? We can help you with guided tour and lessons so you will feel comfortable stand up paddle boarding anywhere.- Advanced & Beginner Options
- Lessons Available Daily
- Launch From Kailua-Kona
- 1.5 Hour Tour Or Instruction
-
Waikaloa Sunset Sail
Make your evening even better with a sunset sail right from the beach in Waikoloa. Cruise the coastline in a luxurious catamaran.- Beautiful Sunset Sail Along The Coast
- Beach Pickup At Anaehoomalu Beach
- Snacks & Non-Alcoholic Drinks
- 1.5 Hrs. 4:15PM Daily Sail, Waikoloa
- Open Daily 8:00am to 5:00pm, HST