Deb D, will be going to Trunks Bay in a couple of weeks to do Snuba Adventure, what I know is to take a taxi from the pier to Red Hook, other side of St. Thomas, then a ferry ride over to Cruz Bay, St. John, then another taxi to Trunks Bay. I'll post this adventure when I get back. Here's a site to look up: www.vinow.com/stthomas, look for "getting around". You can also search St. John and the ferry information on this site. Hope this helps.
Yes, we have done this a couple of ways, if you tender in as we did on a HAL cruise, we stepped off the tender right in charlotte amiela (spelling) walked to our left and got on the ferry over to trunk bay, we have also taken the cab from red hook here is some good info oh by the way it is about 1/2 of what the ship charges
St. Thomas - St. John Ferry Many cruise ship visitors to St. Thomas want to visit St. John and rely on the ferry. You should note that there are two passenger ferries; one in Charlotte Amalie and one in Red Hook. There is only one car barge that takes passengers and their cars over to St. John; it leaves from Red Hook.
Which passenger ferry should you take depends on you, here is a comparison. Note: Cost and time are one way, and are based on the ship docking at WICO dock in Havensight. If your ship docks at Crown Bay the taxi figures will be a couple dollars more.
Taxi from Ship
Charlotte Amalie Ferry
$7 45 min. $3, 5 min.
Red Hook Ferry
$3 20 min. $8-$10, 17 min.
If you are traveling alone the Charlotte Amalie ferry will be a couple dollars cheaper. If you are traveling in a group the difference in price is less obvious because the Charlotte Amalie taxi price doesn't change when there are more then one persons it remains $3 each person however the Red Hook taxi price is less with more people traveling in the group (taxi to Red Hook for one person is $10 and for more then one person it is $8 a person).
Time comparison; the Charlotte Amalie ferry will take longer by a little over 10 minutes, if there is traffic going to Red Hook the total commute time might work out to be the same in terms of taxi + ferry commute. The Charlotte Amalie ferry does not have an hourly schedule like the Red Hook ferry however it does have a regular and frequent schedule.
You might consider; would you rather spend more commute time on a ferry/water or on taxi/land. By ferry you will see a bit of the islands coastline and by taxi you will see a bit of St. Thomas while you drive. If you are prone to seasickness it is best you take the Red Hook ferry so that you are spending less time on the water. Some visitors take both; going to St. John on the Red Hook ferry and then returning directly to Charlotte Amalie on the Charlotte Amalie ferry from St. John. This is an option as you can purchase one way tickets from the ticket counters at the ferry docks. Both the Charlotte Amalie and Red Hook ferry arrive and leave from Cruz Bay, St. John at the same dock. Taxis are always available in Cruz Bay to take you to Trunk Bay, Annaberg or wherever you would like to go on St. John.
If you want my advice, I would take the taxi past Trunk Bay and on to Cinnamon Bay (next beach down). Everyone on six or seven cruise ships will be at or anchored off Trunk Bay. Cinnamon Bay has 2% the people and just as good snorkeling. The only difference is there are more facilities and concessions at Trunk Bay.