Sipadan Island is a deep ocean island in Malaysia and one of the world's diving sites. The island covers an area of about 40,000 square meters and extends directly out of the sea from the 600-meter-deep seabed. The underwater part is shaped like a chimney, supporting the sky. So at the edge of Sipadan Island, as long as you take one more step, the water depth will directly change from 3 meters to 600 meters.