Great Wall (Bloody Bay)

The Great Wall is Bloody Bay's thesis statement. You cross a strip of bright sand in snorkel depth, and then the island simply stops: a face so vertical that looking down produces the small electric lurch of standing on a rooftop ledge. The wall's skin is packed (vase sponges, wire corals, tunicate constellations), and its shallow start means the spectacle works at any depth you choose, including from the surface with a mask. Groupers escort divers along the lip; turtles fly past below like commuter traffic. Few walls anywhere begin so shallow and end so absolutely.

您此行的高光时刻: A sheer face beginning at 6 m, sponge-packed vertical terrain, wall scenery accessible even to snorkelers.

地形地貌: The reef shelf ends at about 6 m in a wall that drops vertically, undercut in places, into abyssal blue.

入水方式: Moored inside the marine park; a short swim crosses the sand shelf to the lip.

危险因素: The shallow lip hides an instant transition to great depth; set and hold a floor.

保育: Bloody Bay Marine Park is mooring-only with strict no-take rules; its condition is the argument for them.

高氧（Nitrox）: 在此值得使用：这些潜点的深度范围内，富氧空气（nitrox）能有效延长免减压停留时间，前提是您已接受相关培训。