Vanishing island refers to any permanent island which is exposed at low tide but is submersed at high tide. Vanishing islands occur globally. There are seven vanishing islands in the Philippines and several in the San Juan Islands.
There is an area which is Government owned and the other areas are privately owned. It includes white sand as one of its tourist attraction and the water was clear and you can enjoy snorkeling, swimming, diving and some other types of underwater adventure.
You can also stay overnight in some cottages owned privately but you should be prepared. Since there is no source of power light, rechargeable emergency light is useful. When at night the place was very cold and you may need a tent. In the afternoon the island starts to vanished, the sand is slowly covered with sea water and you can enjoy swimming near in your cottage. If you are looking for a place to relax, this is one of the best place to stay.