70316524 - Tad Xay and Pha Xay ‘Tad’ and ‘Pha’ respectively mean ‘waterfall’ and ‘cliff’) may arguably be the most beautiful ‘twin’ waterfall in Phou Khao Khouay, particularly during the rainy season.The Houey Xay stream has its source in the northern mountains of70500285 - Cave explorers add scale to this massive cave passage called Deer Cave, arguably the largest cave passage in the world. Mulu National Park, Sarawak, Borneo.
