About 20 minutes'bus ride from the entrance of Buddhist State Temple is located on Tuhan Mountain. It is an artificial grotto. But the outside of the grotto is insulated by glass (can't be photographed). Walking up one side of the mountain road and looking at the Grottoes in glass, and then walking down the other side, it's over. But the scenery of Tuhan Mountain is really beautiful, and it's not white.