As temperatures continue to rise in Sussex this week we have put together a list of the best locations to take a dip and cool off. Whether you are looking for a leisurely paddle around an open-air pool or a wild swim in the countryside, Sussex has some of the best places for outdoor swimming. In no particular order, here are the most popular locations: 1. Saltdean Lido, Saltdean The Saltdean Lido houses a 40m pool which is great for families and serious swimmers, accompanied by a stand-out curvilinear building. There are also sunbathing lawns surrounding the pool. The Grade II-listed lido is in the midst of a £10 million restoration project which will include a ballroom, café and a library.