Tachai Reef stretches through the eastern side of the island, going from the northeast to the southwest, located South is Tachai Pinnacle.

The reef slope falls from 5 to 10 meters to the sand floor at 25 to 30 meters.

Hard corals cover the entire area, most of which are staghorn corals, pore corals, brain corals, and fire corals.

There are also many rocks and rubbles. In the southern part, the gentle slope becomes a steep drop-off that continues from the island down to 30 meters. Here, there are not many corals.

Mild to moderate, running in a northeast to southwest direction.

Divers regularly see leopard sharks lying at the outer sandy area and sometimes in shallow areas.

Large stingrays are found on occasion too. General reef fish include pufferfish, lionfish, parrotfish, and moray eels.

At night, several species of crabs and shrimp come out to hunt.

It is possible to see twin-spotted lionfish, a rare species of lionfish that tends to be shy and hide in crevices.

Cuttlefish, nudibranchs and flatworms are also common.

This dive site is suitable for sunset and night dives as well as day dives that are not too deep.

Dive boats can moor overnight, and the diving pattern here is very simple.

You should go with the current and reef and then be picked up or return to the boat.