The reef below is wide enough to form at least 3 different dive sites and you will likely have the chance to see them all over the course of multiple dives. (Dive-The-World.com)
Multiple dive speed boats are operated from the main vessel to ensure small dive groups and maximum safety. (divezone.net)
When doing multiple dives a day, to depths of 20 meters or more, the elevated levels of oxygen in nitrox keeps divers safe and out of the dreaded decompression zone. (DiveAdventuresAsia.com)