A private catamaran day in St Thomas is pure luxury. You get your own 50-foot sailing boat (SY Sirena) plus snorkeling gear, floats, and an easy-going crew that builds the day around your group. I especially like the onboard setup for relaxing—bean bag chairs and big trampolines on the bow make the whole experience feel social without being crowded. The one thing to watch is that some beach access can change, so the captain may swap stops like Trunk Bay if conditions or restrictions don’t allow it.

This charter works as a half day or full day, typically 4 to 7 hours depending on how long you stay at each spot. Departure is from American Yacht Harbor in Red Hook, with an optional pickup in Cruz Bay on St John if you request it in advance after booking. Price is all inclusive for the yacht up to 12 people, with drinks included and lunch left for you to handle.

Key things I’d plan around before you go

• Choose your own timing at each stop. The captain recommends about 1.5 hours per location so you’re not rushing.
• Bow seating that turns into turtle-watch time. Bean bags plus trampolines make it feel like a floating lounge.
• Snorkel gear and floats are included. You don’t need to pack extra equipment to get in the water.
• Drinks are part of the deal. Soda, beer, rum punch, plus water and ice show up without extra ticket add-ons.
• St Thomas and St John cays are within reach. Think beaches, coves, and snorkeling that can include sea turtles.
• Some famous beaches may be swapped. If access is limited for charter types, your captain adjusts the plan.

Why a 50-Foot Private Catamaran Beats the Usual St Thomas Boat Day

If you’ve ever done the standard group boat tour, you know the drill: you stand in line, get told where to go, and spend more time listening than relaxing. A private 50-foot catamaran charter fixes that. You’re on a large, stable sailing platform with space to spread out, so your group can actually talk, snack, rinse off, and take breaks without squeezing into corners.

For the St Thomas area, this matters even more than usual because the best days depend on water conditions and how long you stay put. With a private charter, you can slow down at the places you like and move on when you’re ready—rather than being bounced along on a schedule that fits someone else.

Boat Comfort: Bean Bags, Trampolines, and Deck Space That Works

The SY Sirena setup is built for the “hang out first” style of day. The spacious salon opens to a back deck with seating and dining, so you’ve got shade when you want it and airflow when you don’t. Then there’s the bow—big seating space with bean bag chairs and large trampolines.

That bow detail sounds silly until you’re on a calm stretch watching the water. People use it for conversation, tanning, and keeping an eye out for sea life—especially when you’re just cruising between snorkeling stops. It’s also the kind of layout that helps families and mixed-age groups stay comfortable, because everyone isn’t trapped below or single-file for hours.

And yes, there’s a restroom onboard. For a half-day or full-day charter, that small comfort becomes a big deal.

How the Captain Builds Your Half Day or Full Day

You choose a half day or full day. From there, your captain and crew design an itinerary to match what your group wants most—snorkeling time, beach time, sightseeing, or a slower day with more lounging.

The operator’s own guidance is to plan for at least 1.5 hours at each stop if you want to enjoy the water and activities instead of feeling rushed. So when you’re deciding between a half day and full day, think in terms of how many locations you want to experience at an easy pace.

A key practical point: the day is private. That means the crew can adjust on the fly—like finding calmer water when winds pick up—so your snorkeling and beach time don’t get cut just because the weather has attitude.

Stop-by-Stop: Secret Harbour, Magens Bay, Trunk Bay, and the St John Coves

You can’t count on every single famous beach every time, but you can count on the general mix: St Thomas beaches, St John highlights, and nearby cays. Your captain selects stops that fit your interests and timing.

Here’s what each commonly included area is like in plain terms:

Secret Harbour

Great for an easy start. It’s a natural spot for snorkeling and relaxing because you can settle in and spend real time in the water rather than just popping in.

Brewer’s Bay

A solid pick when you want beach-and-water time without turning the day into a sprint. It’s one of those places where staying longer pays off—you’ll get more snorkeling and more downtime.

Magens Bay Beach

This is the one you’ll recognize. Expect a classic beach outing feel, with plenty of time to swim and enjoy the water before moving on.

Sapphire Beach

Another frequent favorite for beach time plus snorkeling. If your group wants that easy mix of “in the water, then back out,” this is the kind of stop that tends to work.

Coki Point Beach

A popular snorkeling-and-sun spot. If you’re hoping to see sea life while still keeping the experience beach-friendly, this is a good target.

Lindqvist Beach

More of a quieter style stop compared to the biggest-name beaches. It can be a nice change of pace when you want less noise and more natural water time.

Honeymoon Beach

A great option for couples and groups who want scenic beach time with a calmer vibe. It’s also a nice mid-day reset if you’ve already done some snorkeling.

Francis Bay

A strong pick for a scenic, water-first experience. This stop is often where people shift from snorkeling into just enjoying the shoreline and the sail between swims.

Trunk Bay Beach (St John)

This is the iconic St John stop people ask about. One caution: access can change based on charter rules, and your captain may swap the plan if commercial access restrictions apply.

Maho Bay Beach

Another St John beach option that fits well with the full-day style. It works when your group wants longer beach time and a chance to cool off between snorkeling sessions.

Waterlemon Cay

A cay stop that adds variety. It’s the kind of location that feels like a step away from the main islands—good for water play and relaxing.

Scott Bay Beach and Hansen Bay Beach

These are the more flexible “fit it to your day” stops. They can be great when your captain is balancing water conditions, timing, and what your group is most excited about.

Snorkeling Setup and What You Can Expect to See

Snorkeling is a major part of the appeal, and it’s not an added-cost headache. You get snorkeling equipment plus floats, so you can choose how hands-on you want to be in the water.

In terms of what’s commonly spotted, the vibe of the day tends to lean toward sea turtles and lots of colorful fish. Some trips also include surprises like sting rays and even octopus sightings, depending on conditions and where the crew takes you. I wouldn’t count on any one animal as a guarantee, but you should expect a lively reef experience.

If your group includes kids or anyone who gets nervous in the water, the crew’s job is to make it manageable. Based on real-day experiences shared by other groups, captains and first mates often help with equipment and timing, and they’ll keep an eye on anyone not ready to stay in the water.

Food and Drinks: What’s Included (and What You’ll Need to Plan)

This is one of the better “all-in” private charter setups in the St Thomas area.

Included:

• Ice, soda, beer, and Seas the Day Signature rum punch
• Bottled water (Virgin H2O) plus eco-friendly onboard habits
• Use of floats
• Restroom onboard

Not included:

• Lunch. You can buy lunch at many of the stops, but your day needs to account for it.

In real terms, this means the crew can keep the vibe going—snacks and drinks on board—while you handle the meal portion based on where you stop. If your group cares about lunch plans, mention it early to your captain so they can factor it into timing.

Also: tipping is customary for the captain and crew, typically 15–20% for exceptional service. It’s not built into the base price.

Crew Matters: When Your Captain Tailors the Day

On a private charter, the crew isn’t just operating the boat. They’re shaping how the day feels—especially if your group has specific goals.

Across multiple trips, the strongest pattern is that the captains and first mates pay attention to what people want. Some crews are especially good at turning “we’re not sure yet” into a plan by asking questions and then adjusting snorkeling and beach time to match.

You’ll see names like Maddie with Olivia as first mate, and JP with Lindsey, JW with Ro or Ro and Dylan, Glen with Celina, Dave with Chase, and Alex with crew partners like Coleman and Victor. The common thread is calm control plus active support—help with getting in and out of the water, keeping drinks moving, and making sure people aren’t left guessing.

If you’re celebrating something (like birthdays) or traveling with a mix of ages, this kind of attention makes the charter feel worth the premium. It’s not just the boat—it’s the handholding and the pacing.

Getting There: Red Hook Departure and Cruz Bay Pickup

You start at American Yacht Harbor in Red Hook, St Thomas. The end is back at the meeting point.

Optional detail that can save time: pickup from Cruz Bay on St John may be possible with an advance request after booking. If you’re splitting time between islands, this can make the whole day feel easier.

You’ll also receive a mobile ticket, and the activity is noted as being near public transportation. Service animals are allowed.

Cleanliness, COVID-Era Practices, and Weather Reality

This charter runs outdoors, so weather matters. The experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund.

On the health-and-cleanliness side, the provider highlights specific practices:

• Crew tested monthly through a partnership with RayBiotech
• Crew wearing Covid Free bracelets
• Vessels sanitized after each trip following established CDC and WHO guidelines
• Masks aren’t required since it’s outdoors, though you can wear one if you prefer

The practical takeaway: you can feel more confident about hygiene without turning the day into a sterile, joyless experience.

Value Check: What $1,595 Gets You for Up to 12

Let’s talk value in human terms.

You pay $1,595 per group for up to 12 people. That pricing model is what makes private charters work: if you fill the boat, the per-person cost drops fast. If you only have a small group, the cost per person stays high—but you still get the big perks: exclusivity, more space, and control over your stops.

What you’re getting for that price includes:

• A 50-foot luxury catamaran for your private day
• Snorkeling equipment and floats
• Restroom onboard
• Soda, beer, rum punch, and water
• Ice
• Captain and crew service to manage timing and safety

Lunch costs extra, and you’ll still want to budget for tipping. Also note a limitation: this vessel does not offer BVI visits. A BVI trip can be booked separately under specific product codes (111649P24 or 111649P25), so plan accordingly if BVI is on your list.

Bottom line: it’s best value for families, friend groups, or anyone who wants a premium day without sharing the boat.

Who Should Book This Catamaran Day in St Thomas

This charter fits best if you want:

• A private sailing experience instead of a crowded tour
• A day built around snorkeling plus beach time
• Space to relax, especially with kids or mixed comfort levels around the water
• Included drinks and a crew that actively supports the plan

It’s also a strong option for celebrations because the boat setup makes the day feel like your own floating venue, not a bus ride with waves.

Should You Book This 50-Foot Catamaran in St Thomas?

I’d book it if your group wants control: you pick the day style (half or full), you choose what matters most, and you get the included snorkel gear and drinks without last-minute add-ons. The bow layout, the spacious deck, and the crew attention are exactly the kind of details that turn a scenic day into a memorable one.

I’d think twice if your priority is visiting specific beaches every time, especially the ones that can be restricted. If you’re set on Trunk Bay or any particular stop, keep an open mind and let the captain adjust based on access and conditions. And if BVI is a must-do, make sure you book the right option since this vessel can’t do it.

If you want a private, flexible St Thomas and St John water day with real comfort built in, this is one of the easier ways to get it right.

FAQ

How many people can be on the charter?

The yacht charter is priced for up to 12 people per group.

Is this a half-day or full-day experience?

You can select either a half day or a full day charter. The duration is approximately 4 to 7 hours.

Where does the yacht depart from?

The departure is from American Yacht Harbor in Red Hook, St Thomas. Pickup from Cruz Bay, St John is possible with an advance request after booking.

What’s included in the price?

The charter includes snorkeling equipment and floats, bottled water, soda/pop, beer, and the Seas the Day Signature rum punch, plus ice and a restroom onboard.

Is lunch included?

Lunch is not included, but it can be purchased at many of the stops.

Can this boat visit the British Virgin Islands (BVI)?

BVI is not available on this vessel. A BVI visit can be booked under separate product codes: 111649P24 or 111649P25.

What beaches and areas can the captain stop at?

The day can include beaches and areas such as Secret Harbour, Brewer’s Bay, Magens Bay, Sapphire Beach, Coki Point, Lindqvist Beach, Honeymoon Beach, Francis Bay, Trunk Bay, Maho Bay, Waterlemon Cay, Scott Bay, and Hansen Bay Beach, depending on your captain’s plan.

What happens if the weather is bad?

The experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund.