We do not keep a waiting list and will not call you in case of cancellations.
However, if you would like to standby for the trip to the Dry Tortugas in case there are no-shows, you must go to the Ferry Terminal (100 Grinnell St.) as EARLY as you can get there on the morning you would like to travel. Line up in the order you arrive on the benches along the wall next to the front door of the Terminal. A sign-up sheet will be available at 6:30am. Check-in cutoff is at 7:50am and if there are spaces available you will be accommodated in the order you lined up. There is no way to know if there will be space on any given day, it is completely random.
The dates below are scheduled maintenance days when the ferry will not be running:
October 23 – November 6