Blue Lagoon

Blue Lagoon is a natural spring-fed lagoon located in Barangay Margues, Datu Odin Sinsuat, Maguindanao del Norte, in the Bangsamoro region of Mindanao, Philippines. Known for its clear turquoise-blue water surrounded by rolling hills and vegetation, it is a local eco-tourism site managed with community support. The lagoon offers a tranquil natural setting for swimming and picnics and has become a notable day-trip destination near Cotabato City.

Visitors can expect a small natural lagoon with clear turquoise-blue spring water set among low green hills and rural vegetation in Barangay Margues. The site features an open water area for swimming and wading with shallow edges, earthen banks, and simple cottages and picnic shelters along the shore. The surroundings are quiet and natural, with reflections of sky and hills on the water, suitable for swimming, sightseeing, photography and picnicking.