Lake Lanao is a large freshwater lake located in the province of Lanao del Sur in the Philippines. It is the largest lake in Mindanao and the second largest in the country. The lake is situated at an elevation of about 700 meters above sea level and has a surface area of approximately 340 square kilometers. It serves as a vital water source for irrigation and hydroelectric power generation. The lake is home to various species of fish and is surrounded by lush landscapes and several communities, including the Maranao people. Lake Lanao is also significant for its cultural heritage, as it plays a central role in the traditions and livelihoods of the local population.