First of all - I can't believe I will be missing your DDD by one week! I will have to leave cryptic notes all over the ship!
Anyway - has anyone ever taken the ferry from St. Thomas to St. John? Is it worth it? Do you need to rent a car once you get there? Any "must-see's"?
We're usually just "walk arond town-then hit the beach" kind of people. Any good beaches there?