This trip will take a place in East Java which is one of the highly recommended destinations in Indonesia, there are a lot of the must-visit destinations that you can visit during your holiday here. We highly recommend visiting Mount Bromo, Tumpak Sewu Waterfall, and Mount Ijen. The shortest trip takes about 4 days, and you can easily start from Bali and end up in Bali again. Because we know that most of the travelers arriving and leaving via Bali Island, to read more the info, check our site :)