Andrew "Boy" Charlton Pool
Andrew "Boy" Charlton Pool is an eight-lane outdoor heated salt-water 50-metre (55 yd) swimming pool on the shore of Woolloomooloo Bay in The Domain in Sydney, Australia, near the Royal Botanic Gardens. The pool is typically closed for four months in the colder period of the year - May through August.
Source: Wikipedia — Andrew "Boy" Charlton Pool (CC BY-SA 4.0)