Reviewed · ST THOMAS TOURS

Two Tank Dive

5.0 · 131 reviews From $200 Operated by Aqua Action Dive Center · Bookable on Viator
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Caribbean water rewards the curious. Aqua Action Dive Center’s two-tank boat trip gives certified scuba divers a practical way to see St. Thomas reefs and shipwrecks without spending a full day at sea. I like the small boat limit of 12 people, and I like that tanks, weights, wetsuits, regulators, and the rest of the core equipment are included.

The main point to consider is the minimum group requirement. A poor-weather cancellation or a trip that does not reach its minimum can change your plans, so leave some flexibility in your schedule. You also need proof of certification and scuba experience within the past two years.

Key points to know before you book

Two Tank Dive - Key points to know before you book

  • Only 12 people maximum: The 32-foot island-hopper boat keeps the outing more personal than a large cattle-car style operation.
  • Two underwater sessions in about 3.5 hours: You get a morning or afternoon outing, with a surface break between the two sessions.
  • Reefs, wrecks, turtles, and fish: The trip focuses on the classic St. Thomas underwater mix, including shipwrecks and Caribbean sea life.
  • Equipment is included: Tanks, weights, BCD, regulators, wetsuit, mask, fins, and snorkel are provided.
  • Certification is required: You must show proof of certification and scuba experience within the last two years.
  • Water and fruit are included: The surface interval comes with complimentary refreshments, a small but welcome touch in the tropical heat.

Starting at Secret Harbour Beach Resort

Two Tank Dive - Starting at Secret Harbour Beach Resort

The meeting point is Secret Harbour Beach Resort at 6280 Estate Nazareth in St. Thomas. The trip begins and ends there, which keeps the logistics simple. You do not need to arrange a separate drop-off at another marina after the boat returns.

A morning or afternoon departure gives you some control over your day. If you have a cruise schedule, dinner reservation, or another island activity, check the exact departure time carefully before committing. The advertised length is about three hours and 30 minutes, so allow room around that window rather than scheduling something immediately afterward.

The site is near public transportation, which may help if you are not driving. Still, the information provided does not include a shuttle service, hotel pickup, or transport from the cruise port. You should confirm your own route to Secret Harbour before booking.

Once you arrive, expect the practical steps that come with a certified boat trip: check-in, certification confirmation, equipment fitting, and a briefing before heading out. The small group size should make those steps less hectic, although the exact check-in procedure is not specified.

What a 32-foot boat and 12-person limit mean

Two Tank Dive - What a 32-foot boat and 12-person limit mean

A 32-foot island-hopper is small enough to create a friendly atmosphere and large enough for a proper boat-based scuba outing. With no more than 12 people on board, you are less likely to feel lost in a crowd or wait behind a long line for help with equipment.

That limit also matters underwater. A smaller group can make it easier to stay aware of your guide and fellow divers, especially if conditions change or the site has several points of interest. It does not guarantee a private trip, but it gives the crew a better chance to keep the outing organized.

The trade-off is that a smaller boat offers less room than a large vessel. If you prefer spacious seating, lots of shade, or extensive onboard facilities, you should ask what is available before you go. The supplied details confirm the boat size and passenger limit, but they do not list a restroom, cabin, or special seating arrangements.

The atmosphere is intended to be relaxed and sociable. Aqua Action describes scuba as part of its way of life, not simply a service, and that attitude comes through in the best feedback. One particularly happy customer praised the crew from the first impression to the last and said the staff helped make the day feel like a shared experience rather than a rushed transaction.

Your first underwater session: reefs, wrecks, and local sea life

Two Tank Dive - Your first underwater session: reefs, wrecks, and local sea life

The central attraction is the chance to visit two St. Thomas underwater sites from a boat. Exact locations are not promised, so the route can depend on conditions and the day’s operating plan. You may visit a reef, a shipwreck, or a combination of both.

The reef sites are likely to be the better choice if you want fish and smaller marine life. The available information specifically points to turtles, fish, lobsters, rays, and other Caribbean creatures. That gives you a useful idea of the outing’s character: expect wildlife watching, not a sightseeing cruise with a few minutes underwater tacked on.

Shipwreck sites add a different kind of interest. Wrecks create structure where fish can gather, and they give you something clear to explore as you move through the site. The details do not promise a specific wreck or penetration of the vessel, so you should not assume that you will enter a wreck. Your guide will show you around the selected site according to the day’s conditions and your group’s certification and experience.

The first session is also where the crew’s guidance can make the biggest difference. A positive account praised the dive master for offering useful pointers, remaining patient, and helping the diver feel more comfortable. That is especially valuable if you are certified but have not been underwater recently.

The surface interval with fruit and water

Between the two sessions, you return to the boat for a surface interval. Water and fresh fruit are included, giving you a simple chance to rehydrate, eat lightly, and reset before the second outing.

This break is not just a snack stop. Two separate underwater sessions require attention to your energy, comfort, and equipment. A little food and water can help you finish the second session feeling better than you would after a long stretch in the sun with no refreshments.

The exact length of the interval is not listed. You should follow the crew’s instructions rather than plan around a fixed break time. Use it to tell the staff if a mask, wetsuit, regulator, or other item needs adjustment before you return to the water.

A completely different kind of day:

The second session and the return to Secret Harbour

The second session gives you another chance to see the local underwater environment, often with a different type of site or a new area of the same general habitat. Since no fixed site list is supplied, you should treat the itinerary as a guided selection of St. Thomas reefs and wrecks rather than a guaranteed checklist.

This flexibility can work in your favor. The crew can choose sites based on weather and sea conditions, which is more sensible than promising one location regardless of the day. It also means you should book for the overall experience, not for a specific turtle sighting or named wreck.

Marine life is never guaranteed, but the expected possibilities are appealing. Turtles, rays, lobsters, and schools of fish are all mentioned as part of the area’s underwater appeal. One satisfied customer specifically recalled seeing many fish, lobsters, and rays, along with other sea life.

After the second session, the boat returns to Secret Harbour Beach Resort. The full outing lasts about three and a half hours, including the boat ride, equipment time, both sessions, and the surface break. That makes it a good fit for a half-day plan rather than an all-day commitment.

Equipment included in the $200 price

The $200 per-person price includes the major scuba equipment you need for the outing:

  • Tanks and weights
  • BCD
  • Regulators
  • Wetsuit
  • Mask and fins
  • Snorkel
  • Water and fresh fruit

That package improves the value if you are visiting St. Thomas without your own kit. You do not need to pay a separate rental charge for each major item, which makes the total easier to understand before booking.

For an experienced diver who owns all equipment, the value is more about the boat, crew, site selection, and convenience. You are paying to reach offshore locations with a professional operation, not simply to rent tanks.

The package does not mention personal items such as cameras, dive computers, prescription masks, or other specialty gear. If you rely on a particular piece of equipment, ask the center in advance if it is available or bring your own. The listed equipment covers the standard setup, but not every personal preference.

At $200, this is not a budget beach outing. I think the cost makes the most sense if you want two boat-based sessions, need equipment, and value a limited-capacity operation. If you only want a quick look underwater or have never been certified, this is the wrong product, since it is specifically for certified divers.

Safety, certification, and physical demands

You must provide evidence of scuba certification and proof of diving experience within the past two years. That rule is important. A certification card alone may not satisfy the experience requirement if you have been away from the sport for a long time.

You should be honest about your recent experience. If you are certified but rusty, tell the crew before the boat leaves. The positive feedback about patient instruction and helpful pointers suggests that the staff can offer support, but this is still a certified boat outing, not a beginner lesson.

The activity calls for a moderate level of physical fitness. You should be comfortable handling standard scuba equipment, moving around a boat, entering and exiting the water, and managing two sessions in one outing. The available details do not specify the exact entry method or whether special assistance is available.

Good weather is also required. If conditions are poor, the operator may cancel and offer another date or a full refund. That policy protects you from being pushed into unsafe conditions, but it means you should avoid placing this trip on the final open afternoon of your holiday.

Crew service and the human side of the trip

The strongest praise centers on the crew. The staff are described as friendly, patient, and helpful, with particular approval for clear pointers before and during the underwater sessions. Those details matter because good instruction can turn a merely adequate outing into a comfortable one.

A response from Stephanie thanked one customer for the kind words and for spending the day with the crew. That personal tone fits the small-group approach. The supplied information does not identify every crew member or promise a specific guide, so you should not book expecting a particular person.

There is also one serious caution. A customer arrived and found that the trip was not operating, then had difficulty reaching the shop about a refund. The response explained that the operation had recently changed ownership, that trips require a minimum number of people, and that the business was still transferring its account information.

This appears to have been an isolated service problem rather than the main pattern of the experience, since the overall rating is 4.8 out of 5 and 95 percent of customers recommend it. Still, I would confirm the departure shortly before your scheduled time, especially if your plans are tight. Keep your confirmation details handy and do not assume that a booking automatically guarantees departure when a minimum number is required.

Cancellation terms and practical planning

You can cancel for a full refund up to 24 hours before the local start time. Cancellations made within 24 hours are not refunded, and changes inside that window are not accepted.

The operator can also cancel because of poor weather or because the minimum number of participants has not been met. In either case, you will be offered another date or activity, or a full refund.

The fact that this outing is often booked 39 days ahead suggests that you should reserve early if your St. Thomas dates are fixed. At the same time, early booking makes it even more important to check the cancellation deadline and reconfirm the operating status as your trip approaches.

Who will get the most from this St. Thomas outing?

I would choose this trip if you meet four conditions:

  • You are certified.
  • You have scuba experience within the past two years.
  • You want two boat-based sessions.
  • You appreciate a small operation with a relaxed crew.

It should suit divers who want reef life, wrecks, turtles, and fish in one half-day outing. It also works well if you need standard equipment supplied and want to avoid arranging separate rentals.

I would hesitate if you are a complete beginner, have not been underwater in more than two years, or need a guaranteed named wreck or exact reef. The route is not fixed in the information provided, and the trip depends on weather and minimum participation.

Families or mixed groups should also think carefully. This is not described as a snorkeling tour or introductory lesson, although snorkels are included in the equipment package. The booking is aimed at certified scuba divers, not casual swimmers.

Should you book the two-tank trip?

Yes, if you want a focused half-day of certified scuba around St. Thomas and value a small boat. The combination of two sessions, standard equipment, fruit, water, and a 12-person limit gives the $200 price reasonable value, particularly for visitors who do not own gear.

I would book with two safeguards: confirm your certification and recent experience, then check the departure before heading to Secret Harbour. If you can accept a flexible site choice and weather-related changes, Aqua Action offers a friendly, practical way to reach reefs and wrecks without committing your entire day.

FAQ

Where does the two-tank scuba trip begin?

The trip begins at Secret Harbour Beach Resort, 6280 Estate Nazareth, Nazareth, St. Thomas 00802, USVI.

Where does the activity end?

The boat returns to the meeting point at Secret Harbour Beach Resort.

How long does the trip last?

The experience lasts approximately three hours and 30 minutes.

How much does the experience cost?

The listed price is $200 per person.

Is equipment included?

Yes. The price includes tanks, weights, a BCD, regulators, wetsuits, masks, fins, and snorkels.

Are food and drinks provided?

Water and fresh fruit are included for the surface interval.

Do I need scuba certification?

Yes. You must provide evidence of scuba certification and scuba experience within the past two years.

How many people can join the boat trip?

The activity has a maximum of 12 participants, and the boat is a 32-foot island hopper.

Can I cancel for a full refund?

Yes. You can cancel at least 24 hours before the local start time for a full refund. Cancellations within 24 hours are not refunded. Poor weather or failure to reach the minimum number of participants may lead to a different date, another activity, or a full refund.

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