7. coral reefs, is classified as a marine tourist attraction is beautiful. The diversity of living organisms, corals and clear waters, so it is a valuable resource, the tourism industry of diving and underwater photography.
7. reefs as marine tourism is beautiful. A variety of organisms and the sea is crystal clear coral is a valuable resource for tourism, diving and underwater photography.
7. Coral reefs is a marine attractions are beautiful. The diversity of species and the clear water corals so is a valuable resource for travel industry, scuba diving and underwater photography