Colebra IslandColebra is an island in northeastern Iloilo, Philippines. It is part of the municipality of Concepcion.Location and geographyColebra Island is east of Panay Island in the Visayan Sea. Part of the Concepcion Islands, Colebra is the northernmost point of Concepcion, and only south of Magalumbi Island, which is part of Batad.