Reviewed · SNORKELING

Private Full Day Guided Snorkeling or Diving Charter in St Thomas

★ 5.0 · 18 reviews Operated by Aqua Marine Dive Center · Bookable on Viator
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A full day on the water gives you something most short boat trips cannot: time. You can visit Buck Island’s Cartanza wreck, stop for turtles and rays at Christmas Cove, and still leave room for a quiet swim or lunch ashore. The 42-foot private boat keeps the schedule in your hands, with the captain adjusting stops to the weather and your group’s interests.

I especially like two things here. First, you get a certified snorkel guide, not just a captain pointing toward the water. Second, the crew has shown a knack for making mixed groups work, from first-time snorkelers to experienced scuba divers. The free water, soft drinks, snacks, and adult rum punch also make a long day easier.

The main caution is price. At $3,225 per group, this is a major splurge, and the posted capacity wording says up to one person even though the private format and past outings have served larger groups. Confirm the exact group size and boat arrangement before paying.

Key points at a glance

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - Key points at a glance

  • Buck Island combines a shipwreck and reef snorkeling: The Cartanza wreck at Shipwreck Cove gives the day an unusual underwater focal point.
  • You help choose the route: Talk with the captain about your goals, then let local conditions guide the final plan.
  • The boat is private and 42 feet long: You are not sharing the charter with an unrelated group.
  • The crew can support mixed abilities: Snorkelers, scuba divers, and less experienced participants can be part of the same day.
  • Sea life is a strong possibility, not a promise: Turtles, rays, barracuda, dolphins, and schools of fish have all been seen, but wildlife and visibility vary.
  • The day runs about six to eight hours: Check-in is at 8:00 a.m. for the 8:30 departure from Saga Haven Marina.

What a full private day on St. Thomas water feels like

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - What a full private day on St. Thomas water feels like

This is best understood as a custom boat day rather than a fixed sightseeing cruise. You start with a broad menu of places, then your captain chooses the safest and most rewarding combination based on weather, water conditions, and your group’s wishes.

That flexibility matters in the Virgin Islands. A site that looks perfect on a map may be less pleasant if wind or swell picks up. You might prefer a calm cove for children, a reef with more fish, or a wreck site for experienced swimmers. The crew can shape the day instead of forcing everyone through the same list of stops.

The boat leaves from Aqua Marine Dive Center at Saga Haven Marina, 6117 Estate Frydenhoj, St. Thomas. You should arrive 30 minutes before the activity time to complete paperwork, get fitted for equipment, and meet the crew. The listed start is 8:30 a.m., with the boat returning to the same meeting point at the end.

The crew lineup can vary. Names associated with outings include captains Steve, Justin, Tommy, Dave, Wolfgang, Ryan, and Steph, with guides such as Abby, Jess, Nen, Erika, Anna, and Spencer. You should not expect a specific person unless the operator confirms it, but the repeated strength of the operation is attentive help with equipment, water confidence, and site selection.

Buck Island and the Cartanza wreck

Buck Island is usually the first major stop, with about three hours set aside for two snorkeling locations. That generous block gives you time to try the wreck site, move to a reef, take a break, and get back in the water without rushing.

At Shipwreck Cove, the Cartanza wreck adds a bit of story and structure to the outing. A wreck gives you something specific to look for beneath the boat, while nearby reef areas offer a different kind of scenery. You may see fish around the structure, though exact conditions depend on visibility and sea conditions.

The crew also shares information about local geography and the area’s past during the ride. That is useful because a private charter can otherwise become little more than transportation between swim stops. Here, the boat time becomes part of the experience.

Three hours is a long time for anyone who is new to open-water snorkeling. You can pace yourself, but all participants must be able to swim comfortably and capably in open water without assistance. Children must be at least five and accompanied by an adult at all times.

If someone in your party is trying snorkeling for the first time, ask for one-on-one guidance at the start. Abby has helped first-time snorkelers with mask fitting and confidence in the water, and that sort of support can make a large difference. A leaking mask or loose fins can turn a good outing into a frustrating one if you do not speak up early.

Secret Harbour for a possible lunch break

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - Secret Harbour for a possible lunch break

Secret Harbour usually serves as the midday option. The boat can get close to shore, but you will need to swim or float to the beach if you want to eat at the restaurant there.

This is a useful choice for a group with different priorities. Some people can eat ashore while others remain on the boat or enjoy more time in the water. Meals are not included, so you should budget separately if you plan to use the restaurant.

The shore transfer is also something to think about. You are not stepping directly from the boat onto a dock or beach. Anyone who is tired from the morning should take that swim seriously, especially if conditions are choppy. The included snacks, cookies, crackers, chips, water, and soda can help, but they are not a substitute for lunch.

If your group would rather maximize water time, ask the captain whether to shorten or skip the lunch stop. That is one of the advantages of a private charter. You are paying for control of the day, not for a rigid meal schedule.

Little St. James and the coral ledges

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - Little St. James and the coral ledges

The Ledges of Little St. James are usually given about an hour. The site lies within a protected marine area with hard and soft corals, and it is known for schools of fish such as bluestriped grunts and blue tang.

This stop is more about reef life than a single object like the Cartanza wreck. You can look for fish moving through coral formations and pay attention to the changing textures below the surface. The protected setting is one reason to treat the reef gently: do not stand on coral, touch marine life, or chase fish for a closer look.

Little St. James is also a place where the guide’s presence can add real value. A good guide helps you notice fish that blend into the reef and keeps a mixed group together. Nen, in particular, has been described as exceptionally strong at identifying ocean life and explaining what you are seeing. Ask questions as you go. This is not a museum tour with labels, so the guide becomes your interpreter.

The island’s public profile may attract curiosity, but the water experience is the reason to visit this stop. Keep your attention below the surface and follow the crew’s directions about where you can swim.

More dive trips off St Thomas:

Christmas Cove and the chance of turtles

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - Christmas Cove and the chance of turtles

Christmas Cove at Greater St. James is usually the longest water stop, with about two hours available before or after lunch. The cove is associated with spotted trunkfish, French angelfish, southern stingrays, and other marine life.

This is also one of the strongest places to hope for turtles. Large green sea turtles have been seen during outings, along with rays, barracuda, and, occasionally, dolphins. I would treat those sightings as a bonus rather than a guarantee. Wildlife moves, and visibility can change during the day.

The longer stop gives you time to do more than one quick swim. You can float quietly, return to the boat for a drink, and try again if the first look is brief. That relaxed rhythm is a major reason to consider the full-day format instead of a shorter trip.

The crew’s role matters here. Guides have helped groups locate turtles and stingrays while keeping the outing safe. You should listen closely to instructions about distance from animals. Seeing wildlife is more rewarding when you do not crowd it.

What comes on the boat

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - What comes on the boat

The charter includes a mask, fins, snorkel, and flotation device. Equipment fitting happens before departure, so use that time carefully. Tell the crew if the mask leaks, the fins pinch, or you want a different size.

You also receive water and soft drinks, plus simple snacks such as cookies, crackers, and chips. Adults at least 18 years old can have Pirate Punch, a rum punch served during the outing. The alcohol is a pleasant extra, but you should pace yourself. You still need to stay alert around open water, especially if you plan to snorkel again after drinking.

Meals are not included. If you want lunch at Secret Harbour, you pay for it yourself, and you should remember that reaching shore requires a swim or float from the boat.

Transportation to Saga Haven Marina is also not included. You need to arrange your own way to the meeting point and return from it. The activity ends where it begins, which simplifies the return but does not solve the arrival logistics.

The value of a $3,225 private charter

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - The value of a $3,225 private charter

The listed cost is $3,225 per group, with the published capacity shown as up to one person. That wording is unusual for a private boat experience, especially since the private format is designed for a group and past outings have included larger parties. Confirm the exact number of people covered before booking.

If you are traveling with a sizable family or friend group, divide the price across the confirmed number of participants. The value improves as more people share the boat, particularly if you would otherwise book several separate seats on a group cruise. You are paying for exclusive use, a captain, a snorkel guide, gear, refreshments, and control over the route.

For one or two people, the price is much harder to justify unless privacy and a fully custom day are your top priorities. A private boat can be worth it for a special occasion, but the cost is not a minor upgrade.

The most valuable part is not simply having a boat to yourselves. It is the ability to adjust the day. You can spend more time at a site your group loves, avoid a stop that is too rough, and combine snorkeling with scuba activity if the crew confirms that arrangement.

Who will get the most from this trip

Private Full Day Guided Snorkeling or Diving Charter in St Thomas - Who will get the most from this trip

I would recommend this charter most strongly to families or friends who want the boat to themselves and have different ideas about the perfect day. A confident snorkeler, a first-timer, and a scuba diver can potentially share the same outing, provided everyone meets the swimming and safety requirements.

It also suits people who dislike crowded boats. You have room to talk with the crew, ask questions, and set a comfortable pace. The private setup can be especially useful when children need breaks or when one person wants more help with equipment.

This is not the right choice if you want a cheap, simple swim from shore. It is also a poor fit for anyone who cannot swim comfortably in open water without assistance. Service animals are allowed, and the activity is near public transportation, but the operator asks you to contact Aqua Marine Dive Center about special requirements.

Timing, weather, and cancellation rules

Plan on six to eight hours, including the morning departure and the return to Saga Haven Marina. The long duration means you should arrive rested, bring anything you need for a full day outdoors, and avoid treating the first stop as the only event.

The route depends on conditions. The captain may adjust the order or substitute locations to keep the day safe and enjoyable. That flexibility is helpful, but it means you should not treat every listed stop as guaranteed.

The booking is non-refundable and cannot be changed for personal reasons. If poor weather forces the operator to cancel, you are offered another date or a full refund. Since the financial commitment is large, check the forecast and your group’s plans carefully before booking.

My call: book it if privacy matters more than price

Book this charter if you have a group willing to share the cost, want a private boat, and care about seeing several parts of St. Thomas by water. The Cartanza wreck, reef areas near Little St. James, and the wildlife possibilities at Christmas Cove create a varied day rather than one repetitive swim.

I would be more cautious if your group is small or if you mainly want a quick snorkeling outing. The price is high, lunch and transportation are extra, and the capacity wording needs clarification. Before paying, confirm the number of people included, the planned balance between snorkeling and scuba activity, and which crew members are scheduled.

For the right group, this is a flexible, sea-focused day with strong guide support and plenty of time to slow down. Just make sure the math works for your party.

FAQ

Where does the charter start?

It starts at Aqua Marine Dive Center, 6117 Estate Frydenhoj, Saga Haven Marina, St. Thomas, VI 00802, USVI.

What time should I arrive?

The listed start time is 8:30 a.m., and you should check in 30 minutes before the activity.

How long does the experience last?

The charter lasts approximately six to eight hours.

Does the boat return to the starting point?

Yes. The activity ends back at the Saga Haven Marina meeting point.

Is the boat private?

Yes. This is a private activity, so only your group participates.

What snorkeling equipment is included?

A mask, fins, snorkel, and flotation device are included.

Are drinks and snacks provided?

Yes. Water, soft drinks, cookies, crackers, and chips are included.

Is alcohol included?

Yes. Pirate Punch, a rum punch, is included for adults age 18 and older.

Is lunch included?

No. Meals are not included. At Secret Harbour, you may swim or float to shore and eat at the restaurant there if you choose.

What happens if bad weather cancels the trip?

You are offered a different date or a full refund if the operator cancels because of poor weather. The booking is otherwise non-refundable and cannot be changed for personal reasons.

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