Isla Blanca (Blanca Island) is a volcanic island located at the mouth of Chimbote Bay, near Chimbote, Peru. Administratively it is in Chimbote District, Santa Province, Ancash Region. The island is approximately 3200 m long and 920 m wide. It rises to an altitude of 204 m. Its relief is very rough and rocky. The contours are very steep, especially on the west side of the island.