They will be running naked swimming sessions again this season on the second Tuesday of each month starting in June 19:30-20:45. The cost will be £7 per person and you will need to book via their online booking system (which you can only book 2 weeks in advance of a session).  "Shaftesbury Lido is a community run swimming pool, run by Shaftesbury Town Council and staffed by a passionate team of fully qualified lifeguards. It is an open air 25-yd heated swimming pool"
Here is the link to book;
Book at this link for the Shaftesbury Swim

Event details