Ba Ham Lake
Situated on the south-west side of Ha Long Bay, Ba Ham Lake is found on Dau Be Island (Calf Head Island) in Lan Ha Bay - Catba Vietnam. This island is part of the range of islands at the farthest end of Ha Long Bay, bordering the immense zone Long Chau Sea. Ba Ham Lake is situated in the middle of a narrow, rectangular area, with the all four sides enclosed by vertical cliffs.
The lake is a system comprising three wide and round pits, linked together by a narrow and meandering tunnel. 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. On the island are many species of plants such as orchids, benjamin figs, banyans and cycads, which blossom throughout the year. It is also the home of yellow-haired monkeys, birds, flying squirrels and bats. Under the deep blue surface of the water are the animated lives of shrimp and fish.
Ba Ham Lake comprises three round pits linked with each other by a narrow and dark tunnel. The tunnel’s ceiling has the height ranging from 4 – 5 meters. Thus, the only way to access the lake is by local sampan. Sailing through the tunnel, tourists can see various stalactitesin strange shapes hung down from the ceiling. The pits inside is enclosed by vertical lime-stone mountains. On these mountains are the residence of many species such as orchids, benjamin figs, banyans and cycads. There, tourists can also have chance to see endemic animals of Halong bay like golden monkeys, flying squirrels, silver-headed parrots, bats and butterflies.
Ba Ham Lake is an outstanding site on Halong Bay where still remains untouched natural scenery and special ecological environment.
Some 2-3 km southeast of Trong Mai Islet lies Bo Nau Cave or Pelican Cave. This vaulted grotto covers 200 m2. The floor of the grotto is wide and flat, but not deep, and its wall features lots of stalactites and stalagmites.