Collaroy Rock Pool

While the first rock pool in this spot welcomed swimmers from 1926, it wasn’t until a 1937 extension that it became deep and wide enough to hold an eight-lane, 50-metre lap pool, plus a shallower option for toddlers. The pool’s unusual shape comes from the way it hugs the curve of the rocks, with softer natural lines along the shoreline and straight, sharp concrete lines out into the ocean.