It takes only about 45 minutes to arrive. Clear water, brilliant seabed, colorful fish dance around you. I couldn't wait to see everything around me and try to record it with my camera, but I found that although the camera can retain the moment, it is incomparable with the feeling of being in it. Due to the strict restriction of 120 people per day, diving in Sipadan is hard to find. Sipadan Island is an island formed by coral reefs at the top of an extinct volcano on the sea floor, rising up to 600 meters from the seabed. Located at the heart of the Indian Pacific Basin and with the richest marine ecosystem in the world, more than 3,000 species of fish and hundreds of species of coral have been identified and classified. A large number of green turtles and hawksbill come to the island to mate and nest, making Sibadan famous for this rare phenomenon - thousands of Barracuda and big-eyed squid, forming a spectacular picture like tornado eyes. Sipadan Island is also famous for its unique "tortoise grave". The term "tortoise grave" refers to the burial place of many sea turtles who were drowned because of their lost way. Their remains are distributed in submarine caves and passages, forming a magical submarine maze. Vertical cliffs are characteristic of Sibadan, where sharks can be seen while snorkeling. Divers who want to see huge fish and turtles must also come here.