Jong South is a small offshore reef on Pulau Jong, dived by boat and prized for its compact southern slope. The route typically follows buoy lines onto a reef face that eases into shallower coral, so the dive is about slow reef scanning rather than covering distance. Soft coral is strongest on the upper reef, and the site is known for macro subjects such as nudibranchs and reef cuttlefish. Plan for tidal flow and modest visibility, and treat it as a timing-sensitive dive that rewards an experienced operator.