Best for: Trying something new.
City-dwellers hungry for their alfresco swim fix now have a new expanse of chilly open water to throw their shivering bods into. The Borough of Lewisham’s largest green space is officially London’s newest wild-swimming spot. Only technically, it’s pretty ancient. The park has refilled its lost Georgian lake, which was originally created by Beckenham Place Mansion’s former resident John Cator in 1800. Now, the lagoon has been brought back to its former glory.
Swimmers have to book in advance and pay electronically before wading in. Not into swimming? It also offers regular paddleboarding and even SUP yoga.
Price: From £3.70. Book here.