Reviewed · SCUBA DIVING
Two-Tank Dive for Certified Diving in St Thomas
St Thomas’s two-tank scuba trip keeps things simple: check in at Saga Haven Marina, board a small boat, and spend most of the outing underwater rather than sitting through a long lesson. You’ll visit reef or wreck sites with a professional guide, and each session usually lasts about an hour.
I like the small maximum group of 14 and the fact that the crew supplies the tanks, weights, and scuba equipment. I also like the careful attention described by guests who worked with Jaime, Erika, Anna, AJ, and Captain Tommy. The main drawback is that this is for certified divers, and the $189 price does not include transport to the marina.
Key points for your St Thomas boat trip

- Two one-hour underwater sessions: You get substantial time in the water, not a quick introductory swim.
- Small group format: The boat carries no more than 14 people, allowing closer support from the guide.
- Reef and wreck locations: Sites may include places such as Flagpole, Cabrita, Ledges, Stragglers, and Calf and Cow, depending on conditions.
- Equipment included: Tanks, weights, and scuba gear are provided, with fitting before departure.
- Snacks and drinks on board: Water, soda, light snacks, and a rum punch for adults 18 and older are included.
- Morning trips suit certified divers best: Afternoon departures may include a mix of scuba participants and snorkelers.
Meeting the crew at Saga Haven Marina

Your outing begins at Aqua Marine Dive Center, located at Saga Haven Marina at 6117 Estate Frydenhoj in St Thomas. You need to arrive 30 minutes before departure. That early check-in matters because the crew uses the time to fit equipment, confirm your certification, and make sure all waivers are complete.
Bring proof of your scuba certification. Every person taking part in the certified scuba outing must show evidence of certification, so do not assume that your word or previous booking record will be enough.
Transportation is not included. If you are staying at an island resort or arriving by cruise ship, you’ll need to arrange your own ride to the marina. The operator says it may help arrange a taxi from the port if you ask in advance, which is useful if you are unfamiliar with St Thomas or working around a ship schedule.
The location is near public transportation, but the supplied details do not specify routes or travel times. I would still allow extra time, especially for a morning departure. Missing the boat because of a slow taxi ride would be an expensive way to begin the day.
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A short ride before your first underwater session
After check-in, the captain gives a safety briefing at the dock. The boat then travels for about 15 to 30 minutes to the first site. That is enough time to settle in, watch the crew finish preparing the equipment, and listen to the guide’s briefing.
You will be helped into your gear and directed to the back of the boat for a giant stride entry. This is a standard way to enter the water from a boat, but it can still feel awkward if you have not done it recently. The crew’s assistance is particularly useful for newer certified divers who are still building confidence with a full set of equipment.
The guide leads the group underwater. Each session usually lasts about an hour, though actual bottom time depends on your air supply, depth, conditions, and the pace of the group. The schedule gives you a solid amount of time to look around, but you should not treat the one-hour figure as a promise that every person will remain underwater for exactly 60 minutes.
The exact site is not fixed in advance. The crew may choose reefs, ledges, shipwrecks, or other local locations based on weather and sea conditions. Names associated with recent outings include Flagpole, Cabrita, Ledges, Stragglers, and Calf and Cow. Calf and Cow was especially appreciated for its underwater canyons, while the other locations offer a mix of reef and wreck-style scenery.
That flexibility is a good thing in St Thomas. A captain who changes the site can give you a safer, clearer, or more enjoyable outing than a crew that stubbornly sticks to a planned location. Captain Tommy has been praised for finding good alternatives when conditions were not ideal.
What happens between the two sessions

After the first session, you return to the boat for a surface interval. The captain takes you toward the second site while the crew provides water, soda, and light snacks.
This break is not just a pleasant pause. It gives your body time between underwater sessions and gives you a chance to check your equipment, warm up, and talk with the guide about what you saw. If you are newer to certified scuba, use this time to mention anything that felt uncomfortable during the first session. A loose strap, a mask that needs adjustment, or a concern about the next site is easier to address before you enter the water again.
The ride between sites is short enough to keep the day moving. You will not spend most of the excursion sitting in a marina, but you also should not expect a nonstop schedule. The boat ride, safety talk, gear changes, entries, exits, and surface interval all form part of the roughly three-and-a-half-hour outing.
After the second session, the captain offers more snacks and a special rum punch for adults 18 and older. Alcohol is included only for those of legal drinking age under the operator’s stated policy. If you are heading back to a cruise ship, hotel, or another water activity, keep that in mind.
Choosing between morning and afternoon departures

Morning boats are typically made up of certified scuba participants. That usually makes the morning the better choice if your priority is a focused underwater outing with a similar level of experience in the group.
Afternoon boats may be mixed activity trips with certified scuba participants and snorkelers, although the exact arrangement can vary. A mixed boat is not automatically a problem, but it may create a different rhythm. The crew could be supporting people with different equipment, water skills, and activity plans.
I would choose a morning departure if you want the clearest match for a certified-only experience. If your schedule requires the afternoon, ask Aqua Marine Dive Center what type of boat is planned for your date. The operator may also adjust timing or activities for cruise passengers and private groups if availability allows.
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The kind of guide support you can expect

The strongest part of this trip is the personal attention from the crew. Jaime has been specifically praised for looking after newer certified divers without rushing them and for pointing out underwater sights along the way. Erika has also been singled out for helping a diver feel safe during outings at Calf and Cow.
Anna received similar praise for helping a recently certified teenager feel comfortable on a first post-certification outing. That detail is important. Certification proves that you have completed the required training, but it does not mean you feel equally relaxed in every sea condition or with every boat entry.
The crew names connected with the operation include AJ, Tommy, Steph, Jaime, Anna, Wolfgang, Erika, Jared, and Nan. Staffing can change, so you should not book with the expectation that one particular guide will definitely be present. Still, the repeated emphasis on patience, safety, and clear explanations suggests that the operation pays close attention to support in the water.
You should also be realistic about the role of the guide. This is not a private instructor session. The boat carries up to 14 people, and the guide has to supervise the group as a whole. If you need one-to-one coaching, have medical concerns, or want a private pace, ask about a private boat or a custom arrangement before booking.
What the $189 price includes

At $189 per person, the price covers the main equipment and services you need for this outing:
- Professional guide
- Tanks and weights
- Use of scuba equipment
- Beverages
- Light snacks
- Rum punch for adults 18 and older
The value is strongest if you need to rent most of your equipment. You do not have to arrange separate tanks, weights, or a full scuba kit, and you get two substantial underwater sessions rather than one short swim.
The price is less attractive if you already have a complete setup and are mainly looking for a boat ride. Transportation to the marina is extra, and the experience does not include any stated hotel or cruise-port transfer.
Two sessions of about an hour each also make the price easier to justify for certified divers who want meaningful time underwater. You are paying for the boat, crew, gear preparation, site selection, supervision, snacks, and the chance to visit more than one location in a single morning or afternoon.
Physical requirements and age rules

All participants must be able to swim and should have a moderate level of physical fitness. You will need to handle scuba equipment, board and exit the boat, and make a giant stride entry into the water with assistance from the crew.
The minimum age is 10. Children must be accompanied by an adult, and every certified participant must provide proof of certification. The supplied information does not state a separate certification requirement for children, so confirm the details directly if you are booking for a young diver.
You should also plan around air travel. Divers are advised to allow at least 18 hours between scuba activity and flying. That timing is especially important if you are ending your St Thomas visit with a flight or taking a flight to another island.
Weather, cancellations, and scheduling risks

The boat requires good weather. If poor conditions force a cancellation, you are offered a different date or a full refund. The same applies if the minimum number of participants is not met and the operator cancels the outing.
That weather policy is helpful, but the standard booking policy is strict. The experience is non-refundable and cannot be changed for any reason if you cancel or request an amendment. I would avoid booking this on a day when your cruise schedule, flight, or other plans are uncertain.
Cruise passengers should be especially careful with timing. The operator may be able to adjust times or activities for ship schedules, but that is based on availability rather than a guarantee. If your return to the ship is non-negotiable, ask about timing before paying.
Who will enjoy this St Thomas scuba outing
This is a good match for certified divers who want two guided sessions without packing or arranging all their own equipment. It also suits newer certified divers who appreciate a calm guide, clear instructions, and a group that is limited to 14 people.
It works well for a pair or small group with similar experience. You can spend the surface interval together, visit two sites, and avoid the feel of a large commercial boat.
I would be more cautious if you are newly certified but still uncomfortable in open water, have not scuba-dived recently, or need frequent personal instruction. The crew appears attentive, but this remains a group outing, not a private refresher course.
It may also be a poor fit if you dislike fixed cancellation terms, need included transportation, or have only a narrow window before a flight. The activity is rewarding, but it needs careful planning around weather, air travel, and your cruise or resort schedule.
Should you book this two-tank trip?
I would book it if you are certified, can reach Saga Haven Marina on time, and want two proper underwater sessions with equipment and refreshments included. The small boat, flexible site choices, and reports of patient guides such as Jaime, Erika, and Anna are strong reasons to choose it over a rushed, high-volume outing.
Choose a morning departure if you want the best chance of a certified-only boat. Before booking, confirm the meeting time, ask about taxi help if needed, and leave at least 18 hours before your next flight. If you need private timing or special support, contact Aqua Marine Dive Center first rather than relying on a standard reservation.
FAQ
Where does the scuba trip begin?
It begins at Aqua Marine Dive Center at Saga Haven Marina, 6117 Estate Frydenhoj, St Thomas, US Virgin Islands. The outing ends back at the same meeting point.
How early should I arrive?
You should check in 30 minutes before the scheduled start. This allows time for equipment fitting, certification checks, and completed waivers.
Is scuba equipment included?
Yes. Tanks, weights, and the use of scuba equipment are included, along with a professional guide.
Do I need to show proof of certification?
Yes. Evidence of scuba certification is required from every person taking part in the certified scuba activity.
Are food and drinks included?
Yes. Water, soda, light snacks, and beverages are included. Adults 18 and older are also offered rum punch after the second session.
Can I fly immediately after the trip?
No. Divers are advised to allow at least 18 hours after scuba activity before flying.
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