Physical environment of Chek Jawa.

Chek Jawa, whose treasures can only be uncovered during low tide, is a natural beach. A midget in terms of size, its one-sq. km. area however is packed with six distinct natural habitats, forming the richest ecosystem ever found in Singapore.

Nestled together were mangrove, rocky shore, beach, coral rubble, a sea grass lagoon, mudflats, sand banks, and a coastal forest. Each habitat, defined by a specific set conditions, was host to a unique group of plants and animals adapted to that habitat, and combined, spoke of and impressive biodiversity.

Scientific interest aside, it was visually surprising. Crabs and fish were numerous and the area was peppered with colourful carpet and peacock anemones galore. Starfish, sand dollars and sea cucumbers appeared in large variety and number, shiny cowries were common, the sponge diversity splashed a myriad of colours on the coral rubble and the most extensive lawn of sea grass in the country was on display. Even rare tresaures like octopi and seahorses availed themselves.