A four-hour semi-private powerboat trip from St. Thomas to St. John that pairs two reef snorkels with a visit to iconic white-sand beaches. Small groups, crew-provided gear, and flexible stops make this a practical half-day for swimmers and snorkelers.
More ways to explore the area's outdoor wonders
The Island Flyer slips free of American Yacht Harbor and the harbor's hum falls away, replaced by the slap of wake and a bright, flat horizon. Within minutes the water changes from harbor green to the clear, Caribbean blue that dares you to swim, and the captain already points toward a shallow reef where parrotfish graze and the turtle traffic is daily.
Difficulty
moderate
Duration
4 hours
Fitness Level
Moderate fitness; you should be comfortable swimming short distances and climbing a ladder from the water.
Wildlife
History
St. John’s shores sit within an island chain with Taino and colonial Danish history; much of the island is now protected as Virgin Islands National Park.
Conservation
Use mooring buoys where available, don’t touch coral or take shells, and apply reef-safe sunscreen to minimize impact on marine ecosystems.
Reserve your spot on the St Thomas~St John Snorkel, Swim & Beach Trip on MV Island Flyer today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive early at American Yacht Harbor
Plan to be at the Seas the Day departure lounge at least 15 minutes before boarding to check in and get fitted for snorkel gear.
Use reef-safe sunscreen
Protect coral and your skin—apply reef-safe sunscreen before boarding and reapply after swimming.
Bring a small dry bag
Keep phones, cameras, and a light towel dry; boats have limited storage and space.
Prepare for variable seas
If you're prone to seasickness, take preventive measures—morning trips are often calmer.
Mask & snorkel (personal)
Personal gear often fits better than rental and prevents fogging; crew supplies are available if needed.
Reef-safe sunscreen
Protects skin and fragile coral ecosystems—apply before boarding.
summer
Quick-dry towel
Dries fast between swims and is useful on the beach stop.
Small dry bag
Keeps valuables and layers dry aboard and ashore.