Isla Los Chimús , [ 1 ] also known as Isla La Viuda , [ 2 ] is an uninhabited island belonging to Peru located in the Pacific Ocean , off the coast of the department of Ancash . It is located about 4 km north of Tortuga Island and about 2 km south of Tayta Justo Point . The island has an approximate area of ​​74.10 hectares and has a length of about 1290 m.