In Reply to: Booking for WWR Ayung River posted by naynay on Sunday, 26. February 2012 at 12:24 Bali Time:
From what I have heard, the best and cheapest way to get the Sobek tour is through the "bali discovery tours" website. Think it is around $50 USD per person.
I scoured the net for information becuase we want to do it in April and it seems Sobek is the most highly recomended.
I have read on numerous websites that they do not really discount their tickets much and they are not cheaper at the street booths.
I started a post a bit further down the page about similar topic. There may be some more info on it.