The long and extensive sloping reef covering almost the entire east coast of Koh Rok Noi is one of the best dive sites at the Koh Rok islands.
The sandy beach is fringed with a huge area of corals which makes this a super snorkeling spot, and as we head a little deeper we encounter a sloping reef which runs to 15 - 20 m the entire length of the island. The snorkeling here is as good as Koh Haa Lagoon.
Dropping in the middle of Lak Siam, we can either dive with our right, or left shoulder to the reef.
The slope is covered extensively with a huge variety of hard and soft corals, creating a dense and rich coral reef including branching corals, bubble corals, mushroom corals, lettuce corals, anemones, brain corals, leather corals, soft corals and sea fans. We think this is one of the best dives at Koh Rok.
The dense corals are home to millions of reef fish, including moorish idols, snapper, fusiliers, grouper, wrasse, moray eels, angelfish and butterfly fish, clownfish, shrimp, sea cucumbers, snails, slugs, urchins, feather stars, surgeonfish, parrotfish and many, many other species.
We can also find several species not commonly seen around our other dive sites, such as the convict surgeonfish and more rare species of butterflyfish and angelfish.
Here you will definitely find nemo.
Along the deeper fringes of Lak Siam we find an almost continuous line of giant gorgonian sea fans, giant barrel sponges, and bubble corals, the favourite food of the many turtles which we often see along this reef.
Indeed, it is unusual not to see at least one or two turtles on this dive, sometimes many more.
The southerly part of Lak Siam becomes a more rocky slope and it approaches the shallower end point of the Hin Ngam dive and begins to take on similar features to the end of the Hin Ngam dive.