Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves

Review · BIG ISLAND VOLCANOES AND KONA

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves

★ 5.0 · 347 reviews 5 hours (approx.) From $119 Operated by Dolphin Discoveries · Bookable on Viator
Book on Viator →

A small boat, big ocean time, and real snorkeling variety. This two-reef trip on the Kona coast mixes clear-water snorkeling with volcanic scenery like sea caves and lava tubes. You also have a good shot at dolphin sightings, plus resident and seasonal whales depending on the day.

I especially like how this tour gives you two very different underwater scenes in one 5-hour outing. The Kealakekua Bay stop is built for calm, clear water, and the Honaunau, Place of Refuge stop is known for coral shelves and the chance to see a honu (Hawaiian green sea turtle).

One thing to consider is that this is not a casual float. You must have swim experience, be comfortable treading water and swimming unassisted, and you’ll climb back up a metal ladder to return to the boat.

Key Highlights You’ll Feel on This Kona Snorkel

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Key Highlights You’ll Feel on This Kona Snorkel

  • Two top Kona snorkeling stops in one trip, so you get more “wow” per hour
  • Kealakekua Bay calm water with excellent visibility and lots of tropical fish
  • Honaunau Place of Refuge snorkeling with coral shelves, sandy patches, and turtle odds
  • Captain Cook Monument area plus volcanic sights like sea caves and lava tubes
  • Snacks and beverages included, so you don’t waste your energy hunting food
  • Small-group RHIB boat time, which helps you stay nimble and close to wildlife

Why Two Reef Stops Beats One in Kona

Kona snorkeling can feel like a choose-your-own-adventure day. Some tours do one spot well, but you end up spending a lot of time traveling for just one underwater habitat. This itinerary is built for variety, with two distinct reefs that suit different kinds of snorkeling.

I like that you’re not just chasing fish. You’re also getting a guided look at the coast’s volcanic features along the way, so the day stays interesting even between swims. That mix is what makes this more than a check-the-box snorkeling trip.

There’s also a practical advantage: if visibility or wildlife isn’t perfect at one location, the second stop gives you another chance. Reviews back this up with people often calling the second reef their favorite, especially when it’s less busy in the water.

The RHIB Boat Experience, and Why It Matters for Snorkeling

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - The RHIB Boat Experience, and Why It Matters for Snorkeling
This tour runs on an RHIB, a zodiac-style boat with pontoon seating. That matters because RHIBs tend to be nimble, which helps the crew position the boat well near shore and along the coastline.

You’ll also feel the “ocean ride” part of the day. Expect it to be a bit more lively on the water than you’d get with a big, slow tour vessel. If you get seasick easily, this is where you’ll want to plan ahead, since there are no restroom facilities on the boat either.

The upside shows up right away: you get to spend real time snorkeling, and the crew can shift between stops without turning the day into a long transit slog. Plus, the small-group size (up to 28 travelers) helps the vibe stay controlled in the water.

The rest of our Big Island Volcanoes and Kona notes for Big Island of Hawaii

Dolphin Discoveries: How This Part of the Day Usually Feels

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Dolphin Discoveries: How This Part of the Day Usually Feels
The first stop is about scanning the ocean for dolphins as well as checking for resident and seasonal whales. This is less about a guaranteed sighting and more about giving you time on the water when wildlife activity is most likely.

In practice, you’ll be watching from the boat and listening for the crew’s guidance. Several people highlight bonus marine life like spinner dolphins and whales during the ride between reefs, so it’s worth treating this as part of the core experience, not just a warm-up.

If you’re the type who wants the best odds for wildlife, this early start helps. Starting at 8:00 am also means calmer conditions more often, which can translate into smoother boat time and more enjoyable snorkeling later.

Kealakekua Bay: Calm Water, Clear Visibility, and Lots of Fish

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Kealakekua Bay: Calm Water, Clear Visibility, and Lots of Fish
Kealakekua Bay is one of the best-known snorkeling areas on the Kona side for a reason: it’s a large bay designed to keep waters calmer year-round. That calm matters because snorkeling is easier when you’re not fighting waves, and calm also helps keep visibility crisp.

The underwater world here is known for variety, with the bay described as home to over 100 varieties of tropical fish. That’s a lot of different shapes and colors to look for, and it means you can have a great snorkeling experience even if you don’t focus on one species.

I also like how the crew frames the habitat. The tour includes environmental and cultural information connected to the island, so you’re not just floating over coral. You’re learning how the coastline and marine sanctuary connect to Hawaii’s natural systems.

Real-life tip: bring a reef-safe mindset. The tour recommends reef-safe sunscreen (zinc based is recommended, with no oxybenzone and octinoxate, and lotion rather than spray). It’s a small effort that helps protect the reefs you came to see.

Honaunau Bay and the Place of Refuge Snorkel Setup

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Honaunau Bay and the Place of Refuge Snorkel Setup
After Kealakekua, you head to the Honaunau area, closely tied to Pu’uhonua O Honaunau National Historical Park, often called the Place of Refuge. This second snorkeling stop is described as very different from Kealakekua Bay, and that difference is part of the value.

The underwater layout here includes coral shelves with white sandy patches between them. That mix is great for snorkeling because you can alternate between scanning sandy areas and moving your attention toward coral structure where fish gather.

This is also where turtle sightings are possible. You might see a honu (Hawaiian green sea turtle), and the habitat style is a good match for why turtles cruise these kinds of shallow, scenic areas.

Keep in mind the swim requirement is real. This tour specifies that you must have swim experience and be comfortable treading water and swimming unassisted. Pool noodles are included, but you still need to handle your own buoyancy and movement in open water.

Captain Cook Monument Area and the Volcanic Coast You Can See From the Boat

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Captain Cook Monument Area and the Volcanic Coast You Can See From the Boat
The tour includes a stop around the Captain Cook Monument, and the day is also designed to show you unique volcanic geological phenomena along the Kona coast. The big themes are sea caves and lava tubes, plus other coastline features the crew points out.

Even if you’re not a geology nerd, this part is worth your attention because lava formations help explain why Hawaii’s coastlines look the way they do. On a snorkeling day, it’s a good reminder that the underwater scenery didn’t just happen. It’s the result of long volcanic activity shaping the land and the marine environment.

You’re also not stuck staring at the water surface the whole time. Several people describe a guided look at points of interest during the return ride, including caves and lava tubes. Some mention even a cliff-diving spot along the coast, which adds a fun local flavor to the scenery talk.

If you like a tour that mixes “look, then learn,” this one fits. The crew role is not only transporting you between swim spots, but also explaining what you’re seeing along the shore.

Gear, Snacks, and the Little Things That Make Snorkeling Easier

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Gear, Snacks, and the Little Things That Make Snorkeling Easier
Snorkeling gear is included, including mask, fins, snorkel, and pool noodles. That’s a big practical win. You don’t have to pack your own setup, wash it, and hope it fits well enough to enjoy the water.

Snacks, fresh fruit, and beverages are also served during the trip. People often call out how much the snacks hit the spot after coming up for air. That matters more than you might think, because snorkeling makes you hungry fast, especially under Hawaii sun.

The tour also encourages you to bring a towel and cover-up. You’ll want something easy to throw on after your swim, since the boat ride leaves you exposed during transitions.

One more small detail that can change your experience: you’ll need to sign an electronic waiver before the tour. If you’re the type who shows up with everything in your head, do the waiver ahead of time so you’re not rushing at check-in.

Timing, Meeting Point, and What the Day Feels Like Overall

Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves - Timing, Meeting Point, and What the Day Feels Like Overall
The tour runs about 5 hours. It starts at 8:00 am and ends back at the meeting point, so you’re not sent off into a mystery schedule.

You’ll meet at 78-6831 Ali‘i Dr, Kailua-Kona. Since the tour says it’s near public transportation, you’re not forced to coordinate a complex plan if you’d rather not rent a car for the day.

A key practical note: restroom facilities are not available on the boat. If you’re sensitive to this, use facilities before you board. Also, the tour is not recommended for travelers with neck problems, which is important if you plan to keep your head position stable in choppy conditions.

The day also includes a capacity limit of 28 travelers. With that size, you get the benefits of small-group snorkeling without feeling like you’re trapped in a huge cattle line.

Price and Value: What $119 Gets You on This Tour

At $119 per person for an approximately half-day outing, the value comes from the package, not just the boat ride. You’re paying for two snorkeling stops, gear, snacks and drinks, and a crew that provides cultural and environmental information.

When you factor in that equipment is included, the effective cost gets easier to swallow. If you’ve ever tried snorkeling with borrowed gear that doesn’t fit, you’ll appreciate having proper snorkel gear as part of the deal.

The other value factor is time management. A 5-hour trip that includes two snorkeling locations keeps you out on the water long enough for real enjoyment. Multiple reviews mention a solid amount of time in each location, and that typically shows up as a better rhythm: gear on, breathe, look, then take the boat time to the next reef.

If you’re visiting Kona and you want a single “do this one” snorkeling plan that also touches volcanic coastal scenery, this is priced like a thoughtful compromise between a big tour and a private outing.

Who This Tour Is For, and Who Should Sit This One Out

This tour clearly fits active travelers. You need to be comfortable treading water and swimming unassisted, and you must be able to climb up a metal ladder back into the boat.

It also has a weight limit of under 285 lbs. There’s a minimum age of 6, but minors must be accompanied by an adult at all times, which makes it easier to bring families who can handle open water.

You should consider skipping if you have neck problems, or if you know you can’t manage a ladder climb. And if you don’t feel confident in open water, no amount of pool noodles will fix that. This is snorkeling with guidance, not a flotation event.

If you’re a beginner, you can still do this as long as you meet the swim comfort requirements. Several people mention that the crew teaches how to use snorkels correctly, which helps first-timers relax and get more out of the water.

Should You Book This Two Reef Snorkel and Sea Caves Trip?

Book it if you want two different Kona snorkeling habitats in one morning and you like the idea of seeing volcanic coastal features from the boat. Kealakekua Bay gives you calm, clear-water fish time, while Honaunau Bay offers coral shelves, sandy patches, and a chance at turtles. The Captain Cook Monument area adds a geology and Hawaiian history element that keeps the day from becoming only underwater time.

Don’t book it if you’re looking for a totally relaxed, no-skill-required water activity. The ladder climb and swim comfort rules matter, and you won’t have a restroom onboard. Also, the tour requires good weather, so if you’re traveling with a very tight schedule and you hate weather-related changes, build in flexibility.

If you’re traveling with family or friends and you want a small-group feel, this fits well. The setup is designed to keep you moving and seeing more, with snacks and a knowledgeable crew like Dennis, Bryce, Craig, Raj, Eve, and Jenny appearing in multiple recent experiences.

FAQ

What is the duration of the Two Reef Snorkel Trip-See Captain Cook Monument & Sea Caves?

The tour runs for about 5 hours.

Where does the tour start and end?

It starts at 78-6831 Ali‘i Dr, Kailua-Kona, HI 96740 and ends back at the same meeting point.

What snorkeling equipment is included?

Mask, fins, snorkel, and pool noodles are included.

Do I need to know how to swim?

Yes. You must be comfortable treading water and swimming unassisted.

Is there a restroom on the boat?

No, restroom facilities are not available on the boat.

Are there any age or weight requirements?

The minimum age to attend is 6, minors must be with an adult, and you must be under 285 lbs.

What marine life might we see?

The itinerary includes a search for spinner dolphins, plus resident and seasonal whales. A honu (Hawaiian green sea turtle) is possible at Honaunau Bay.

What reef-safe sunscreen guidance should I follow?

Use reef-safe sunscreen, with zinc based recommended and no oxybenzone or octinoxate. The guidance also says to use lotion, not spray, and to bring a cover-up and towel.

What is the cancellation policy?

You can cancel up to 24 hours in advance for a full refund. If you cancel less than 24 hours before the start time, there is no refund.

Big Island Volcanoes and Kona reviewed right across Big Island of Hawaii