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Frequently Asked Questions
Got questions? We’ve got answers. Find everything you need to know about booking and joining our tours.
The live reservation team is available 8:00 am – 4:30 pm HST, 7 days a week by phone. Online booking is available 24/7. You can also email info@dolphindiscoveries.com.
Note: After 4:30 pm, the manta ray team is preparing for charters and cannot assist with reservation questions.
At least one week ahead for most times of year. During peak seasons (summer, spring break, holidays), tours often book up several weeks in advance. You may book up to a year ahead. Large groups should always book early, regardless of season.
Discounts and promotions are offered at different times of year, but discounts are not applied to already-discounted tickets. Call the reservation team to ask about current specials.
Yes! Private charters are available for families, bachelor/bachelorettes, weddings, corporate events, retreats, and more. Book online or call (808) 322-8000.
48-hour strict policy: Cancellations made less than 48 hours before departure receive no refund and no rescheduling, for any reason.
Cancel 48+ hours in advance → full refund.
Trip Assurance (purchased at checkout) allows cancellations within 48 hours for a full refund minus the assurance fee. Cannot be added after checkout.
Private Charters: 7-day cancellation policy for a full refund.
If Dolphin Discoveries cancels due to weather, ocean conditions, or mechanical/safety issues, they will offer a free rescheduled trip (space available) or a full refund.
Contact your booking agent directly for any modifications. Their policies may differ from Dolphin Discoveries' standard policies.
Wear a swimsuit under a cover-up. Bring: a towel, sunglasses, reef-safe sunscreen (lotion only, no aerosols), a camera, and a small bag (dry storage on board is limited). For manta ray trips, a towel or cover-up afterward is especially recommended.
Reef-safe sunscreen is required by Hawaii state law. No spray sunscreens — lotion only. Zinc and mineral-based sunscreens are recommended.
Avoid ingredients: oxybenzone, octinoxate, octisalate, avobenzone, octocrylene, homosalate, and nanoparticles.
Reef-safe sunscreen (3 oz tubes) is sold at check-in. Brands like All Good and No Ad are solid choices.
All boats offer some shade, but sun protection is still important. Apply waterproof reef-safe sunscreen beforehand and consider a rash guard, paddle shirt, or hat. Those concerned about sun exposure often choose the afternoon Captain Cook Snorkel Adventure, as Kona is typically cloudier in the afternoon.
All vessels are rigid hull inflatables (RHIBs) with inflatable pontoon seating. Three boats have two helm seats. The newest vessel, Moana Lou, has both bench and pontoon seating. Specific boat assignment cannot be guaranteed.
Not recommended for guests with neck or back problems, or those who are pregnant.
At the dock, board by stepping onto the pontoon. To enter the water, sit on the pontoon and slide in from the side. Exit via a secure metal ladder on the side of the pontoon.
No bathrooms on board. Use facilities near the check-in location before departure. Your first opportunity to enter the water is approximately 30–40 minutes into the trip.
Day snorkeling at Kealakekua and Honaunau Bays is best in 5–15 ft of water. Standing on or touching coral is prohibited.
The manta ray night snorkel in Keauhou Bay is 35–40 ft deep. Lit boards allow visibility to the coral bottom. Snorkel vests and noodles are available on request.
Yes, you're welcome to bring your own. Onboard gear includes silicone masks, dry snorkels with purge valves, and fins in many sizes — all sanitized after each use. There is no discount for bringing your own equipment.
Full face masks are not permitted on any charter. They carry risks of CO₂ buildup leading to loss of consciousness and are difficult to remove quickly in distress. A traditional mask and snorkel are strongly recommended.
Formal lessons aren't offered, but the crew will help fit your gear and share tips before you enter the water. Pool noodles are available.
- You don't need to be an excellent swimmer, but you must be able to swim.
- Practice breathing through a snorkel in a pool or bathtub before your trip.
- Once in the water, breathe slowly and calmly.
No. Animals are wild and free. No re-rides or refunds are offered if whales, dolphins, or manta rays are not seen.
Captains assess ocean conditions 30 minutes before departure — no trip is cancelled before that point. If cancelled for safety, a reschedule (subject to availability) or full refund will be offered. Tours run rain or shine.
RHIBs tend to cause less seasickness than large catamarans due to open air and speed, but susceptible guests may still be affected. If taking medication, take the recommended dose the night before and the morning of the trip. No refunds are issued for seasickness.
The minimum age for any in-water activity is 6 years old. A parent or guardian must remain with the minor at all times, whether on the boat or in the water.
Yes. Non-swimmers can join as a "ride-along" — a paid reserved seat on the vessel. There is still plenty to see and learn from the boat on every tour.
An electronic waiver (E-Waiver) link is included in your confirmation email. One waiver is required per person, including minors (who can be added to a parent or guardian's waiver). Sign in advance to speed up check-in. If you can't find the link, it can be accessed directly at the Dolphin Discoveries waiver page.

Slip into the ocean at night and let our crew guide you to where Kona's manta rays feed. These gentle giants can reach wingspans of up to 18 feet and will glide right beneath you. If you only have time for one snorkel trip on the Big Island, this is the one.
Snorkel Kealakekua Bay, home of Captain Cook's Monument and one of the highest-rated snorkel spots on the Big Island of Hawaii. Tropical fish, Hawaiian sea turtles, and the occasional pod of dolphins — all in some of the clearest water on the Kona Coast.
Snorkel two of Kona's best spots on one trip! On this peaceful early morning 4 hour adventure you get to snorkel the beautiful marine sanctuary at Captain Cook's Monument in Kealakekua Bay and the Place of Refuge.
Humpbacks fill Kona waters December through March, and dolphins, Pilot Whales, Beaked Whales, and Melon-headed Whales are here year round. Get close to the action on an open-air boat with a naturalist crew that loves sharing what they know.
Your boat, your day. Our private "Holo Holo" charters are fully customizable — snorkeling Kealakekua Bay, watching for dolphins and whales, or just cruising the Kona Coast with the people you love. All ages welcome, contact us to plan your trip.