Geographically speaking, Santurce is a peninsula that is attached to the mainland in the east, where it borders with the Isla Verde district of Carolina. It is 7.6 km long from west to east, and up to 3.0 km wide in the eastern part. The peninsula is bounded by the Atlantic Ocean in the north, with more than five km of beaches from the Condado peninsula in the west, to a point 600 m east of "Punta Las Marías", where it borders on the Isla Verde area, and "Laguna San José" and its northern embayment, "Laguna Los Corozos" to the east.