On Friday,me,eldest son and friends son,hired an outdoor pursuits guide(mates rates),and went in the water down by Glynneath,the heart of big waterfall country,not as tall as Pistyll rhaeder or high force,but you can walk behind these ones,the big attraction is the jumps,here’s a few pics ,when I’ve worked how to download from my partners phone ,I’ll post the rest.need to return,as the valleys littered with the remains of Nobels explosive works,closed in 1931.