Getting ThereMost visitors to St. John fly in to St. Thomas. Passenger ferries run from there to Cruz Bay, where buses, taxis and rental cars -- the best way to see the island -- are available. Rentals start at roughly $75 a day. Saving tip: An airport rental and a 20-minute drive to the car barge can cut $30 or more off your daily rate. Make sure the rental company allows travel to St. John. While Budget ( CAR) and others do, some don't.