Dating back all the way to the 1860s, Pells Pool has the distinction of being the oldest freshwater public pool in the country. It also has a longer than average Summer season than most other open-air pools, staying open until late October in 2019. This unheated spring-fed pool is 46 metres by 23 metres, and there's also a paddling pool, tree-lined lawn, sun terrace, and refreshments for sale. Events include a starry night swim around midnight.