Mu Koh Similan Marine National Park
The Koh Similan is a archipelago of mine small granitic islands sits some 90 kilometers northwest of Koh Phuket. The islands and their surrounding waters cover an area of about 128 squire kilometers. They feature lush rainforest's inhabited by squirrels and bats. Bird-life is also well represented. There are now two fully staffed park offices (on Koh Miang and Koh Similan), but otherwise the islands are uninhabited.
A noticeable characteristic of the Similans is the huge contrast between the east and west coast of the islands. The eastern coastlines are in the lee of the prevailing summer weather monsoons, and feature superb sandy beaches and sheltered bays. The western coasts, however, are subject to the full force of the harsh southwesterly monsoons (which blow from May to November) and are characterized by rugged shorelines where weatherbeaten granite boulders rise directly from the seabed. As you will see when you dive, this geographical pattern is repeated underwater.
Diving around the Similans
The Similans can certainly lay claim to being one of Asia's top dive destinations. The dramatic underwater terrain is highlighted by thriving reefs and abundant soft corals, and the tremendous diversity of marine life includes many of the more exciting, larger pelagics.
During late March and early April, Thailand's hottest period, rising sea temperatures cause plankton blooms, which give the water a greenish tinge and reduce visibility considerably; however, the plankton attracts a wealth of pelagics, with the chance of spotting Whale Sharks, Manta and Eagle Rays and a host of other predators.
In general, the east-facing dive sites feature gently sloping reefs and dropoffs with impressive gardens of sea anemones, flourishing hard and soft corals, and teeming fish populations. With negligible currents and mostly moderate depths, these sites are suitable for any level of diver. The sheltered conditions are also perfect for snorkeling.
Diving around the archipelago's western sites is quite the opposite. Here giant boulders tumble down to the seabed to depths of 40 meters or more. Strong currents keep the gaps between the boulders free from build-ups of sand, leading to the development of a network of tunnels, archways and cavern that provide exciting swim-throughs. The currents also provide nutrients for masses of gorgonians, crinoids, seafans and lush soft corals.
|
