On September 11th & 12th, I went to a Hindush temple on the Salak Mount, they were having a massive annual ceremonial which is called the Odalan.
I think most of the Balinese in Jakarta and Bogor came to this temple to attend this ceremony. It was very crowded, but most of the people are very friendly and welcome to photographers and tourists, too.
Overall I could say that I enjoyed being there a lot. I love the Balinese food and enjoyed meeting a lot of new Balinese friends.