I can pin point the moment I went right off water gardens, pools, large ponds and lakes. I was sitting on the terrace of a friend's villa in Spain as the Med burned all around us, reading a book by Chris Stewart. In it he describes the process of building a reed bed filtration unit for his Spanish home's grey water. He goes on to describe how on completion, his wife and daughter would swim in this perfectly clear pool, as frogs and fish brushed against their arms and legs. Even now this makes me feel slightly queasy and goose bumpy.
Moving fresh water, rivers and the sea hold little fear for me, and seaside rock pools make the most perfect water gardens.