Pura Lempuyang, the temple at the bottom of the hill is a busy Bali tourist stop - primarily to get a photo in front of the Gates Of Heaven which frames the volcano Gunung Agung in the background (on a clear day). But 99% of visitors don't go past the first temple. A 2-3 hour quiet loop trail passes 7 other small temples, the highest of which is at the summit of Gunung Bisbis. N.B. You are required to wear a sarong on the trail which you borrow free of charge at Pura Lempuyang