Ko Rok Nai is the sister dive site to Ko Rok Nok and like its sister it offers a nice easy calm dive with a lot of amazing corals and fantastic marine life. The site is not that deep and divers will be able to stay at around 12 meters to see all that is on offer. The current can sometimes be strong enough for this to be a drift dive, so divers need to take precaution with this.
The hard coral dominates this site but there will also be many barrel sponges and some sea fans. There are many giant clams as well of many different colours, which is always fantastic to see on a dive.
It is common as well to see many pelagic fish. Trevally, barracuda, and dogtooth Tuna are very common and it is not surprising to see many of these on one dive. It is easy as well for divers to see Eagle rays, turtles, and black tip reef sharks. For muck divers and lovers of macro diving, tiger tail seahorses are spotted here and there are a large variety of nudibranchs and shrimps to be found in the nooks and crannies.