Wat Tham Chiang Dao Temple
Set in pretty grounds that teem with jungle butterflies, this forest wát sits at the entrance to Chiang Dao Cave, a chilly warren of passageways that extend more than 10km beneath the limestone massif of Doi Chiang Dao. For Buddhists, the cave is a meditation retreat, a sort of extension of the wát itself, and the twisting tunnels overflow with stalactites and stalagmites.