Ayung River Ubud Bali – The Best Three Whitewater Rafting Companies. Although there are many rivers in Bali, not all rivers are suitable for rafting trips. There are three river locations in Bali that are ideal for rafting trips. The river is the Ubud Ayung River, the Telaga Waja Karangasem River, and the Klungkung Melangit River. Every stream has pros and cons. However, for this page, we inform you about the arung Ayung river in Ubud Bali for rafting trips.