There are relatively beautiful scenery in the ocean of Xisha Islands, which should be coral reefs and blue holes. The coral reefs of the Paracel Islands are one of the four most famous productive areas in the world. There are 432 species of coral reef fish in the Xisha Islands, accounting for 81.3% of all marine fish species. Among them, there are 6 genera, 6 species and 7 species in the soft coral family, 2 genera and 7 species in the water coral family, 11 species in the intertidal coelenterate family Acropora, etc.

There are 41 species of benthic crustaceans, belonging to 13 families and 28 genera, including 25 species of brachyurans, belonging to 5 families and 15 genera. Crabs mainly include fan crabs, spider crabs, swimming crabs, magnetic crabs, frog crabs, king crabs, horseshoe crabs, etc. There are the most types of fan crabs, with 6 genera and 11 species. Some have colorful stripes all over their bodies; some have a cluster of red tassels on their heads; some have many fans stuck around their bodies, swaying when they swim; some have round eyes and their bodies are covered with thorns. Inflate and become as round as a ball. There are countless kinds of fish. As people say, the sea in the Paracel Islands is half water and half fish. Coral in the Paracel Islands - some...some... Various kinds of coral grow on the rocks on the seabed, some are like blooming flowers, and some are like branching antlers. Sea cucumbers are everywhere, squirming lazily on the bottom of the sea. The big lobster is covered in armor and looks very majestic as it paddles here and there.