Reviewed · SAILING
Private Full Day, Fun Day Aboard SY Mazu – Luxury Gemini Legacy Catamaran
A private boat makes island time easy. Seas the Day Charters gives your group seven hours aboard SY Mazu or SY Neptune, a Gemini Legacy sailing catamaran built for relaxed cruising between St. Thomas and St. John. I like the freedom to shape the day around swimming, snorkeling, lunch, or simply sitting forward with a cold drink. I also like the small private setup, since the boat carries only your group, up to eight people.
The main consideration is price. At $1,595 per group, this is a major splurge for two or three people, but it becomes much easier to justify when eight people share the cost. I would also keep expectations flexible: wind and sea conditions can limit where the boat goes, and a few reports point to occasional maintenance or communication issues.
In This Review
- Key points before you book
- Leaving Red Hook aboard SY Mazu
- The route between St. Thomas and St. John
- Ledges of Little St. James for two hours
- Lovango Cay for lunch and a change of pace
- Honeymoon Beach and the St. John coast
- Christmas Cove, Maho Bay, and turtle watching
- Drinks, music, and the simple pleasures
- The crew is a big part of the value
- Is $1,595 a fair price?
- What to know before departure
- Who should book SY Mazu?
- Final decision: book it or skip it?
- FAQ
- How long is the SY Mazu charter?
- Where does the boat depart?
- How many people can join the private charter?
- Are snorkeling equipment and drinks included?
- Can the boat pick up passengers in Cruz Bay?
- Is lunch included in the price?
- What happens if bad weather cancels the trip?
Key points before you book

- A private seven-hour charter: Your group of up to eight people has the boat to itself, with room to choose the pace and stops.
- Two Gemini Legacy catamarans: SY Mazu and SY Neptune are 35-foot sailing catamarans with twin Yanmar engines.
- Snorkeling is a major part of the day: Equipment, bottled water, soda, beer, and Seas the Day rum punch are provided.
- Flexible St. Thomas and St. John route: Possible stops include Christmas Cove, Maho Bay, Lovango Cay, Honeymoon Beach, and the waters near Little St. James.
- Experienced crew makes the difference: Captains and first mates such as JP, Maddy, Holly, Ben, Alex, Heather, Coleman, May, and Nate have received strong praise for planning, safety, local knowledge, and attentive service.
- Lunch is arranged, not included: The crew can suggest or coordinate places such as Lovango Cay, Maho Bay, or Pizza Pi, but plan to pay separately for food.
Leaving Red Hook aboard SY Mazu

The usual departure is at 9 a.m. from American Yacht Harbor in Red Hook, St. Thomas. That start time gives you a full day on the water and leaves enough room for several stops without turning the outing into a rushed checklist.
SY Mazu is a Gemini Legacy 35 sailing catamaran with twin Yanmar engines. The twin-hull design gives you wide outdoor space and a stable platform for sitting, talking, and getting into the water. The bow is set up for relaxing, sunbathing, and watching for turtles as you move between islands.
This is not a large party boat. Only your group participates, which changes the feel of the day. You can spend longer at a favorite snorkeling site, skip a stop that does not interest you, or ask the crew to suggest a quieter place. The captain still makes the final call based on safety and sea conditions, but you have far more control than on a scheduled group cruise.
The boat has a Sony sound system with Bluetooth, so you can bring your own music. That is a nice touch for a private charter, though one report described a speaker problem. The company responded that the issue was repaired, but I would still treat the sound system as a bonus rather than the central reason to book.
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The route between St. Thomas and St. John

The boat travels in the waters between St. Thomas and St. John, with possible stops selected according to the day’s weather and your group’s interests. The listed route includes about two hours at each of three main locations, but a private charter can adjust the schedule.
That flexibility is useful because the best stop depends on more than a map. Wind, waves, boat traffic, snorkeling conditions, and the mood of your group all matter. A calm cove may be better than a famous beach on a rough day.
The crew can also provide local background as you cruise. Several captains and first mates have been praised for explaining the islands, their history, and the surrounding waters. If that interests you, say so early. If you prefer quiet sailing and music, the private format lets you keep conversation light.
Ledges of Little St. James for two hours
The waters near Little St. James are one of the possible longer stops. The island is a small, uninhabited island off the eastern end of St. Thomas, within protected waters associated with Virgin Islands National Park. The area is known for clear water and natural scenery rather than shops or a developed beach stop.
This is a good place to focus on the water. You might spend time snorkeling from the catamaran, swimming, or watching the coastline from the boat. Several accounts describe excellent snorkeling on the day, including turtles, fish, stingrays, barracuda, starfish, and sharks. Marine life is never guaranteed, but the repeated turtle sightings make a mask and snorkel worth using.
The practical advantage here is that you do not need to carry your equipment from beach to beach. Masks, snorkels, and related gear are supplied on board. You can get in from the catamaran, swim, then return for water or a drink.
The limitation is that this is not a land-based island tour. You should not expect a walk, a museum, or a developed attraction at this stop. Its appeal is the water and the setting.
Lovango Cay for lunch and a change of pace

Lovango Cay is a private island destination near St. John, with a more polished feel than an undeveloped snorkeling cove. The island combines clear Caribbean water with upscale facilities, scenic views, and places to eat.
This is one of the more useful stops for a mixed group. Strong swimmers can snorkel, while someone who has had enough salt water can enjoy lunch and the island setting. Food suggestions mentioned by people who enjoyed the stop include brisket grilled cheese, lobster flatbread, and other casual dishes. Those details can change, so check the current menu when you arrive.
Lunch is not part of the $1,595 charter price. The crew can help coordinate a meal or recommend a place, but you should budget separately for food and any purchases on shore. That arrangement gives you choice, though it also means the final cost will be higher than the boat price alone.
Lovango also works well as a scenic pause. After several hours of swimming, you may appreciate solid ground, a proper meal, and a view that does not require balancing on a moving boat. If your group wants the day to remain mostly on the water, you can ask how much time to spend ashore.
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Honeymoon Beach and the St. John coast

Honeymoon Beach sits within Virgin Islands National Park on St. John. It is known for white sand, clear turquoise water, and a quieter beach setting. The two-hour stop gives you time to swim, snorkel, or simply settle into the beach atmosphere.
I would choose Honeymoon Beach if your group wants a classic Caribbean beach break. The sand is easier for a relaxed swim than a rocky shoreline, and the setting adds variety after time spent snorkeling from the boat.
The tradeoff is that beach popularity and conditions can vary. Wind may affect the crossing or the comfort of the stop, and the captain may change the plan if the water becomes too rough. One group reported high winds and choppy water that restricted the route, although the crew still made the day comfortable.
The crew can help you decide how long to stay. A private charter is most useful here because you do not have to leave simply because a fixed group schedule says so. If everyone is happy in the water, stay. If the beach feels crowded or the wind shifts, move on.
Christmas Cove, Maho Bay, and turtle watching

Other possible destinations include Christmas Cove and Maho Bay. These locations are especially appealing to people who want snorkeling and wildlife rather than a full day of beach time.
Christmas Cove has been used for snorkeling near a shipwreck, and several outings have included turtle sightings there. Maho Bay is also associated with turtle watching, and the crew can help look for sea life while keeping the day at a comfortable pace.
You should remember that a private charter is not a wildlife guarantee. Turtles and fish move freely, and the captain cannot promise exactly what you will see. Still, the boat gives you a better chance to spend time in the water at a site chosen for current conditions rather than following a rigid public-tour route.
If snorkeling is your priority, tell the crew at the beginning. If your group includes children, nervous swimmers, or people who prefer floating to extended swimming, explain that too. The crew has been praised for helping groups find suitable spots and for making sure everyone feels looked after.
Drinks, music, and the simple pleasures

The inclusions are practical rather than fancy. You receive bottled water, soda, beer, rum punch, and snorkeling equipment. Seas the Day rum punch appears often in the day’s rhythm, and the crew can prepare drinks while you enjoy the ride.
You can connect to the Sony Bluetooth sound system and play your own music. Bring a playlist that works for the whole group, not just one person. The boat’s setting does much of the work, but music can make the long passages between islands feel more personal.
The bow is the place to sit when you want breeze, sun, and a better chance of spotting turtles. The rear area may suit you if you want more shade or easier access to the drinks and equipment. Exact seating details are not provided, so ask the crew when you arrive if someone in your group needs a particular setup.
Alcohol is included, but responsible drinking matters. Seven hours on a moving boat in strong sun can catch up with you quickly. Alternate rum punch or beer with water, especially if you plan to snorkel.
The crew is a big part of the value

A private charter can be wonderful or merely expensive, depending on the people running it. Here, the strongest pattern is praise for the captains and first mates.
Captain JP has been singled out for warmth, safety awareness, and practical skill. Captains Maddy, Holly, Ben, Alex, Heather, Bryan, Brian, Jason, and others have also been praised for making route suggestions, sharing island knowledge, and adapting the day to each group.
First mates including Coleman, May, Nate, Yosef, Cayenna, Sunny, Osay, Hans, JR, and Christie have been described as attentive and helpful. The best reports describe a crew that handles drinks, equipment, lunch planning, and local advice without making the group feel rushed.
That service matters because most people booking a private boat are paying for ease. You are not just buying transportation between islands. You are paying to avoid planning every swim, beach, and meal yourself.
There are a few cautions. One group found communication before the trip less clear than expected, so confirm pickup and any special plans in advance. Another group reported a dirty boat, a smaller vessel than expected, and an unpleasant interaction with a crew member. Those complaints appear less common than the positive accounts, but they are worth keeping in mind.
The boats are described as clean and well maintained by other groups, and one mechanical problem led to a free upgrade to a larger boat. That is encouraging, though equipment problems can happen on any working vessel.
Is $1,595 a fair price?
The cost is $1,595 per group of up to eight people. Split eight ways, that works out to about $199 per person before any separate lunch expenses. For four people, it is roughly $399 per person. For two people, the price becomes difficult to defend unless privacy and a custom route are your top priorities.
The value improves when you compare it with what is included: seven hours, a private catamaran, a captain and crew, snorkeling gear, bottled water, soda, beer, and rum punch. You also gain control over the day, which is the main luxury here.
A public boat trip may cost less, but you will likely follow a set schedule and share the space with more people. If your group wants quiet time, personal music, flexible snorkeling, and a private celebration, the extra cost can make sense.
I would book this for a family group, a birthday, a relaxed bachelor or bachelorette outing, or friends who can fill all eight places. I would hesitate for a couple on a tight budget or anyone looking for a formal sailing lesson. This is a sightseeing and swimming charter, not a sailing course.
What to know before departure
The activity begins at 9 a.m. and returns to the meeting point after about seven hours. Mobile tickets are accepted, and confirmation is provided when you book.
If you want pickup at the national park dock in Cruz Bay on St. John, call ahead and confirm it. Do not assume that this pickup is automatic. This charter normally departs from Red Hook, so the meeting details matter.
You should be comfortable with a moderate level of physical activity. Getting in and out of the water, moving around a catamaran, and swimming or snorkeling require basic mobility. Service animals are allowed, and the meeting area is near public transportation.
The experience depends on good weather. If poor weather forces a cancellation, you can choose another date or receive a full refund. For your own cancellation, cancel at least 24 hours before the 9 a.m. start time for a full refund. Changes or cancellations inside that window are not accepted or refunded.
Who should book SY Mazu?
I would recommend this charter if you want a flexible day on the water and can share the cost with a full group. It suits people who care more about swimming, scenery, drinks, and personal service than about checking off every attraction.
It is particularly good for groups with mixed interests. One person can snorkel, another can relax on the bow, and someone else can enjoy lunch at Lovango Cay. The crew can help balance those wishes better than a fixed public excursion.
I would be more cautious if you need perfect weather, flawless equipment, a guaranteed wildlife encounter, or a very detailed pre-trip communication process. Ask about the exact boat, pickup point, route, and lunch plans before departure.
Final decision: book it or skip it?
Book SY Mazu if privacy and flexibility are worth paying for. The best parts are the small group size, generous time on the water, strong crew service, and access to several beautiful St. Thomas and St. John locations.
Fill the boat with eight people if you can. That is where the price makes the most sense. Go in with an adaptable plan, keep lunch money separate, confirm Cruz Bay pickup if needed, and let the captain adjust the route for the weather. Done that way, this can be the most relaxed and personal day of an island stay.
FAQ
How long is the SY Mazu charter?
The experience lasts approximately seven hours and begins at 9 a.m.
Where does the boat depart?
The usual departure point is American Yacht Harbor in Red Hook, St. Thomas.
How many people can join the private charter?
The private catamaran can accommodate up to eight people, and only your group participates.
Are snorkeling equipment and drinks included?
Yes. Bottled water, soda, beer, Seas the Day rum punch, and snorkeling equipment are included.
Can the boat pick up passengers in Cruz Bay?
Pickup at the national park dock in Cruz Bay may be available for SY Mazu, but you must call and confirm it in advance.
Is lunch included in the price?
Lunch is not listed as an included item. The crew can recommend or coordinate places such as Lovango Cay, but plan to pay separately for food.
What happens if bad weather cancels the trip?
If the experience is canceled because of poor weather, you can choose a different date or receive a full refund. You can also cancel for a full refund if you do so at least 24 hours before the start time.
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