Cave of the Kastom Shark is a boat-access cave-to-wall dive from the Munda area, reached by a short mangrove walk to a small island pool before the descent begins. The route drops through a vertical shaft into connected chambers and then opens onto a wall, so it is a true overhead dive that rewards careful buoyancy, guide-led navigation and comfort with changing water movement. It is one of Munda's signature advanced dives rather than a casual reef swim.