The island, along with Pulau Dayang, Pulau Lang and Pulau Pinang, are rated among the best diving destinations within the Johor Marine Park Area. The deeper waters around the area ensure good visibility and variety of marine life. Dive trips can be booked at most dive shops on any of the islands.
The rich pelagic action also attracts numerous sport fishermen, hoping to try their luck with the marlins or sailfish outside the marine park island. Many private yachts anchor at the calm waters between Pulau Aur and Pulau Dayang.
Towards the north-eastern tip about 200 meters off Pulau Dayang is Rayner’s Rock, a solitary large boulder breaking the surface about 4 meters high.
Diving is good around the eastern portion with a mixture of both hard and soft corals providing shelter for a profusion of marine life. You can expect to encounter schooling yellowtails, rainbow-runners, and trevallies. Closer to the reef, there are usually groupers, damsels, butterfly fish, scorpion fish and lots of shells.
This submerged reef is located towards the South Pulau Aur and Pulau Pinang. The top of the reef begins at about 12 meters and slopes in excess of 25 meters.
If diving in right conditions with slight currents, a large number of prelagics including jacks, fusiliers, barracudas and black tip sharks can be sighted. Among the hard corals and scattered soft corals are wrasses, puffer fish, damsels, lionfish, snappers and in between rocky crevices, lobsters.
There are boats to the island from Mersing jetty or Sedili. The long boat journey takes about 4.5 hours, and most operators opt to depart in the late evening, travelling through the night to arrive the next morning on the island. If the seas are rough, the boat ride could take a little longer.