Taxis can be found around the harbor in Marigot or at Orient Bay. Rates are fixed according to zone.
Buses run regularly from Marigot and Grand Case to Philipsburg, but not around Orient Bay. Hail them along the route and look for the destination in the window.
Most car rental firms are around the airport on the Dutch side of the island.
Watch out for Gendarmes performing highway controls. Visitors report fines for having open cans or food in the car.