Protected by steep, jungled slopes, the remote mountain village of Trunyan rests on the eastern shores of the vast Batur crater lake, at the foot of Mount Abang. The people of Trunyan practice unique and ancient rituals of Animism found nowhere else in Bali, which predates the arrival of Hinduism or Buddhism on the Island of the Gods.

Often considered as one of the most beautiful mosques in Asia, the Omar Ali Saifuddien Mosque was completed in 1958 and is dedicated to...