Calayan (Ibanag language, meaning "where laya (ginger) abounded") is a municipality in the province of Cagayan, Philippines. According to the 2010 census, it has a population of 16,200 people in an area of 49,453 hectares (122,200 acres).It is located in the South China Sea, in Luzon Strait north of Luzon Island. The town is composed of four of the five major islands of the Babuyan Islands namely: Calayan, Camiguin, Dalupiri and Babuyan Island.