The area we describe under the name Asia, is a bit more than what is called Asia in the geographic sense. We included the subcontinent of India and the Philippine Islands.
This part of the world has many and and extraordinary caves and so extreme karst areas like the tower karst in China and Thailand. Unfortunately there are not so much caves accessible to the tourist. However, the list we have at the moment is extremely incomplete. There are definitely much more sights, but information about them is not available in English.