Il Gallo Lungo is an island of Italy, in Campania. Belonging to the municipality of Positano, it is part of the Li Galli group. It is the largest of the three islands of the group, with the shape of a long sickle, whose concavity, looking towards La Castelluccia and La Rotonda, defines a closed bay protected by other islets. On the convex side of Gallo Lungo, a small cove has been excavated, called "la Praja", with a very short beach, which allows boats to anchor. At the bottom of the cove there is a small house, while at the barren top of the island there is a coastal watchtower.