On of the southern islands, Pulau Hantu is a common destination for divers who are taking their open water, or photographers looking for macro subjects. The visibility can vary from 1m to up to 6+m (on rare occasions); the best time to dive is a slack tide or edd tide (falling) as it helps to improve visibility. Seahorses are common here, as are pufferfish, barracuda, batfish, nudi's, the occasional turtle or shark.
Tioman island is the go-to dive destination for most divers in Singapore. Its an easy weekend trip (departing Friday night and returning Sunday night), there is a large number of dive sites around the island, some of the most popular are Ringgis, and Malang Rock. Common sightings around Tioman are reef sharks, turtles, dolphins, moray eels, clownfish, batfish and be careful of the Titan Triggerfish as they can be aggressive here!