The tanks are continuously sanitised, and patrons get an iPad loaded with movies and TV shows to help fill the time while the little ones do their work. Being munched by Garra Rufa fish is a ticklish experience, but worth it if you’re willing to spend a full hour with your pedals in the tank (for best results). £30 for 30 minutes, £45 for an hour.  

7-9 Queensway, W2 4QJ  
Tube | Bayswater

Photo: Thinkstock