Ba Ham Lake is a system comprising three wide and round pits, linked together by a narrow and meandering tunnel, situated in the middle of a narrow, rectangular area, with the all four sides enclosed by vertical cliffs.. Stalactites hang from the ceiling in a myriad of strange, coloured forms. The silence is disturbed only by the sounds of the boat’s oars.
Although 25 km from the shore, it has long been considered an ideal tourism zone. The entrance is a open semi-circular hole in the flat stone wall on the north-west side of the island, 4 to 5 m above the sea.
On the island are many species of plants which blossom throughout the year such as orchids, banyan and cycad… It is also the home of yellow-haired monkeys, flying squirrels, bats and birds. Under the deep blue surface of the water are the animated lives of fish and shrimp.
Starting from the entrance, tourists enter the first tunnel, which boasts a forest of stalactites and stalagmites in different shapes and various colours. They fall down the water surface like the roots of banyan.
In the southeast cliff of the second tunnel there grows an old carambola tree, which bears fruits all year round. Tourists can find groups of monkeys, flying squirrels, or silver-headed parrots gathering in its branches. Lying one cliff away from the second one, the third tunnel is home to various species of bats and butterflies.0