*Disclaimer - this is NOT my photo.* I got this from the Agoda listing of Badladz dive resort. I don't know if this is the same falls, but you can also go swimming in Aninuan falls.
According to my guide, there's an Infinity Farm and Infinity Resort. The "farm" has lots of waterfalls (but I don't know if manmade or natural). I didn't check that out due to time constraints. Maybe next time...