In the midst of the sea, is about 22 km from Coasline of Tanjung Kelayang line, there is Pulau Lengkuas. The lighthouse that stands on the island was built by the Dutch in 188
If you climb to the top of the tower, you can enjoy a breathtaking view of the sea with small islands around such as Bird Island, Pig Island and the island of Hajj.
The most suitable time to visit the island is march- November. During this time the sea is calm and can be reached by boat ride and enjoy the clear blue sea. From December to January travelling by bot is not recommended as the waver are very dangerous and these months are the monsoon season so you can expect rainy days all day long.
Source : Amazing Bangka Belitung