You can only get to Miquelon by boat. There are ferries running between St. Pierre and Miquelon. There are also ferries running between Fortune, a small town on the west side of the Burin Peninsula, and St. Pierre.
Visitors are required to clear customs to enter the French territory and to re-enter Canada.
You can book hotel and ferry tickets as a package with St. Pierre Tours Ltd. There is a toll-free number (800-563-2006) for a travel agency in St. John's Newfoundland.
St. Pierre Tours Ltd. is housed in the same building as the ferry office Fortune, Newfoundland. They also provide vehicle storage and shuttle service to the dock for a nominal fee.