Baie des Petites Cayes is a beach on the northeast side of St. Martin.  It is one of the northnernmost beaches on St. Martin and faces Anguilla.  There are no roads leading to the beach.  To get to Baie des Petites Cayes you can either park by Anse Marcel (where the Radisson is) or by Grandes Cayes (by the French dump).  From either direction it will take you about 30-45 minutes to walk there, depending on your physical capabilities.  The paths leading in are not very well defined in some places and a fair portion of it is quite rough.  The beach itself is a white sand beach.  Swimming would be difficult at this beach as it has some of the roughest waves on the island.