Ha Long Bay has an area of around 1,553 km², incuding 1,960 islets, most of which is limestone, the core of the bay has an area of 334km² with highly denstiy of 775 islets.
Ha Long Bay has an area of around 1,553 km² most of which is limestone, the core of the bay has an area of 334km² with highly denstiy of 775 islets. Km² are incuding 1,960 islets. This is around 1,553.