All of our charters are private and custom so it would just be your group with our captain for the day and you can go anywhere you'd like. The most we usually take on our center console boats is 9 people. You don't have to know exactly where you want to go, the captain can give you plenty of suggestions and you can play the day by ear.
For the center console boats, a full day is 8 hours. Fuel charges would depend on where you go. If you went to the BVI you could visit any combination of Tortola, Norman Island, Jost van Dyke, etc. and fuel it would be around $175; anywhere between $150-200 depending on where you go and how much you bounce around.
Virgin Gorda is not included in this as it's about 40 miles away so if you included The Baths in your itinerary fuel would be around $275-300; maybe less it just depends on the water conditions that day and where else you went. We do this trip often but always like to let people know it's more expensive for the fuel.
You could also stay in the USVI and spend your time around St. Thomas, St. John, Water Island and some of the little uninhabited islands and fuel would be about $150. Our captains make sure that each trip is customized to fit exactly what the guests are looking for whether it be snorkeling, beach bar hopping, visiting the most popular spots, checking out some of the more hidden local spots or a combination of all. On these boats we provide snorkel gear and a cooler with ice and water and you're welcome to bring anything you want.
