blisters.if ever you want an open water swim i will meet up with you.............bradley stoke lake opensall year around and is at the M4, M5 junction.i swam there in december last year.......
also the river taff at cardiff is free I swam there most weeks last winter.......
i believe in spring the dive centre at Chepstow opens to swimmers as well.......
let me know if you discover any more.....
i love OPen water swimming