Doi Chiang Dao Mountain is 2225 meters above sea level making it one of Thailand’s highest mountains. Although impressive in its own right, and playing host to a number of sites worthy of a visit, Chiang Dao Caves are of special interest. The caves extend around twelve kilometers into the mountain and only experienced potholers should venture beyond the 5 areas designated for visits The caves contain crystals that have formed through dripping water - these are extremely impressive formations and make the visit well worth it.