The clear and refreshing waters of Kayangan Lake in Coron can be enjoyed after a steep stair-trek of about 700 steps (total, up and down), which can take anywhere from 15 minutes to half an hour. A cave opening awaits at the top, from which you can have a postcard-perfect view of the lake and rock formations, before descending to swim in waters so clear you can see underwater rock formations and marine life from the surface.