10. Sipadan Island, Malaysian Borneo
Located in the South China Sea, Sipadan is highly recommended for more experienced divers as it has strong currents that can prove too strong for beginners. This site is rich in species like barracuda, horse-eye jacks and sharks, as well as green turtles and hawksbill turtles. Two other nearby reefs that are worth visiting are Kapalai and Mabul reefs.