For wreck diving enthusiasts, Riau Islands diving has everything you could want. From Batam Island dive the Codd Wreck in Kerang Gelang, a 100-year-old wreck completely encrusted in coral and home to frogfish, scorpionfish, cuttlefish, and pipefish among feather stars and sea fans. Nearby at Bintan Island, dive the Igara Wreck which sits between 14 to 41-metres and attracts a myriad of fish including the occasional nurse shark. In 1973, this Italian bulk ore carrier struck an unmarked rock and sunk only a year after entering service. Mapur Island, in the Bintan island group, is well known for its untouched beaches. The reefs among submerged pinnacles and sloping seabeds are pristine.
Further east from Mapur, lies the 229 islands of the Anambas Islands archipelago. At Damar Island, dive an underwater pinnacle with the chance of spotting a whale shark during the migratory season. Batu Kataoka, also a submerged pinnacle, is rich with marine life and clear water and with great visibility comes the ideal opportunity to see blacktip reef sharks patrolling the area.
If scuba diving in the Riau Islands divers will come across the countless uninhabited islands in the archipelago. As there is no human activity, these islands often have pristine coral reefs that are among the best-preserved in the oceans near to Singapore.