Pools with a view: Here are 12 of the best places in the world to relax in crystal-clear waters

I have swum in crystal-clear English rivers at the height of summer, raced across New York to take a dip in lidos in all five of its boroughs in a single day, and dived into plunge pools beneath turbulent waterfalls deep in the cloud forests of Costa Rica. In short, I am obsessed with swimming. … Read more