If you are booked on a cruise that calls at Charlotte Amalie, the biggest question of your day is which of the many St. Thomas excursions is actually worth your money — and which ones you can do yourself in half the time for a fraction of the price. The island packs beaches, a national park, a 17th-century fort and a 350-year-old tower into an area you can cross in about 45 minutes, so a short port day goes further here than almost anywhere else in the Caribbean.
Here are the twelve St. Thomas excursions we recommend most often to cruise visitors, sorted by what they cost you in time, plus an honest note on when to book through the ship and when to just walk off and go.
How Excursions Work on a St. Thomas Cruise Day
Ships dock at one of two piers: the West Indian Company Dock (WICO) at Havensight, or Crown Bay a few minutes west of town. Both have taxi stands, and open-air safari taxis run set routes into Charlotte Amalie for a few dollars a person. If you are not sure which pier you are on or how the town is laid out, our St. Thomas cruise port guide maps it out.
That matters because it changes the math. Ship-sponsored tours guarantee you get back aboard and take the logistics off your plate. Independent operators and self-guided stops usually cost less and move faster. On a six-hour call, the difference can be two extra activities.
The 12 Best St. Thomas Excursions
1. St. John and Trunk Bay
A ferry ride plus a taxi over the ridge gets you to one of the most photographed beaches in the hemisphere, inside Virgin Islands National Park. It is the single best full-day option — and the one most worth booking through the ship, because the return ferry timing is unforgiving.
2. Snorkeling at Coki Point or Turtle Cove
St. Thomas has easy shore-entry snorkeling with reef fish and sea turtles a short swim from the sand. Boat snorkel trips reach better sites but eat three to four hours.
3. Magens Bay Beach Break
The classic half-day: a taxi over the mountain, then a mile of calm, shallow water with chairs and a beach bar. Magens Bay charges a small entry fee. See our guide to the best beaches in St. Thomas for quieter alternatives.
4. Skyride to Paradise Point
Seven minutes up a gondola from Havensight for a harbor panorama and a frozen drink. Short, easy, and right at the WICO dock — a good filler if your call is only four hours.
5. Blackbeard’s Castle and the 99 Steps
Climb the historic 99 Steps to Skytsborg Tower, built by the Danes in 1679 and one of only five National Historic Landmarks in the U.S. Virgin Islands. A $15 day pass covers the castle grounds, a tour of the tower, a drink at Jolly Roger’s and a rum room sampling. USVI residents get in free with island ID.
6. Charlotte Amalie Historic Walking Tour
Danish warehouses, Fort Christian, the second-oldest synagogue in the Western Hemisphere — all within a walkable few blocks. Our self-guided walking tour and the roundup of historical sites in St. Thomas will fill an easy two hours.
7. Coral World Ocean Park
Coral World at Coki Point has an undersea observatory, sea lion and turtle encounters, and a nursery reef. It is the strongest family pick on the island — see our St. Thomas with kids guide.
8. Catamaran Day Sail
Half-day sails run to Buck Island, Water Island or Christmas Cove with snorkel gear and rum punch included. Book early; the good boats sell out on multi-ship days.
9. Kayak and Mangrove Eco-Tour
Paddle the Mangrove Lagoon marine sanctuary on the east end. Quiet, shaded, and one of the few St. Thomas excursions that is genuinely different from what every other island offers.
10. Island Sightseeing Safari
An open-air truck tour hitting Mountain Top, Drake’s Seat and a couple of overlooks in about three hours. Low effort, high photo count.
11. Duty-Free Shopping and a Rum Tasting
Main Street’s alleys are the densest duty-free shopping in the Caribbean, and the USVI allowance is more generous than most ports — details in our St. Thomas shopping guide. Pair it with a rum tasting up the hill.
12. Water Island and Honeymoon Beach
A short ferry from Crown Bay to the “fourth Virgin Island.” Beach bar, hammocks, almost no crowd. Best on a day when three ships are in port and you want out of town.
Choosing St. Thomas Excursions by Time in Port
Four hours or less: stay in town. Skyride, the 99 Steps and tower, Fort Christian, Main Street. You will not feel rushed.
Five to seven hours: one beach or one boat, plus town on the way back. Magens Bay in the morning and the castle before all-aboard is the pairing that works best.
Eight hours or more: St. John, a full-day sail, or Coral World plus a beach. Our St. Thomas itinerary lays out a full day hour by hour, and the wider things to do in St. Thomas hub covers everything else.
Should You Book Through the Cruise Line?
Book with the ship when the excursion involves a ferry, a boat, or a drive to the far end of the island — the guaranteed return is worth the markup. Book independently, or skip the tour entirely, for anything in Charlotte Amalie. The town sits directly above the WICO dock, and the walk up to the castle takes about fifteen minutes.
One more thing worth knowing: schedules shift. Confirm your pier and all-aboard time against the Virgin Islands Port Authority listings, and call any third-party operator to confirm hours and pricing before you commit.
St. Thomas Excursions FAQ
Do I need to book St. Thomas excursions in advance?
For boats, ferries and anything on St. John, yes — those sell out. Beaches, town walks and the castle you can decide on the morning of.
What is the cheapest thing to do in St. Thomas from a cruise ship?
Walking Charlotte Amalie costs nothing, and Jolly Roger’s Restaurant and Pirate Bar is always free to walk into — no admission needed to eat or drink. The $15 day pass is the cheapest way to add the tower, the grounds, a drink and a rum sampling.
How far is Blackbeard’s Castle from the cruise port?
About a ten-minute taxi from either pier, or a fifteen-minute uphill walk from the waterfront. Full directions are in our cruise port to Blackbeard’s Castle guide.
Is there a hotel at Blackbeard’s Castle?
Yes. The hotel sits on the castle grounds beneath the historic tower — not inside the 1679 landmark itself — and reservations are open. Guests get grounds, pool and tower access with their stay.
What are the opening hours?
The property is open 9am to 9pm daily, year-round, which means the best of the St. Thomas excursions on this list can be stacked before or after a stop up the hill.
Plan Your Day Around the Hill
Whichever St. Thomas excursions you settle on, leave yourself an hour at the top of Charlotte Amalie. The harbor view from the tower is the one your photos will be judged on, and Jolly Roger’s poolside bar is where most people end up before heading back down to the ship. Grab your $15 day pass online and walk straight in.
