Marshall Street Leisure Centre

Located just off Carnaby Street, this elegant Art Deco pool is one of central London's best kept secrets. Originally opened in 1931, the stunning grade II listed building has recently been restored to its former glory after an £11 million redevelopment. The pool is a good size – 30.5 metres with three lanes – and features a spectacular barrel-vaulted roof and marble tiles. Spa London, the brilliant affordable spa chain also owned by Better, have facilities here featuring thermal suites; two aroma rooms, two saunas and a relaxation lounge. Book in for a City Salt Scrub or a massage, wrap or facial with scrummy Elemis products.