Supposedly the tallest waterfall in this area, Sekumpul is a hidden gem in the beautiful forest. On the way to it, you will come across many durian and rambutan trees. The trip to the waterfalls might be a bit exhausting but the view is definitely worth it.
Info http://www.raftingbali.net/sekumpul-waterfalls/
Address 81171, Indonesia
Coordinates -8°10'41.956" N 115°10'57.904" E