The swimming pool at Arnold Leisure Centre has been closed while work takes place to repair the roof.
The pool will be closed from 2pm on June 3 and is not expected to reopen until early autumn.
Gedling Borough Council plan to fit a new roof, suspended ceiling and also upgrade the lighting in the pool area during the improvement works.
Extra swim sessions will now be taking at Calverton and Carlton Forum Leisure centres to accommodate everyone who would usually use Arnold Leisure Centre.
DNA members can attend any centre as part of their pay monthly package at no extra cost. Any changes to the pool programmes at Carlton Forum and Calverton leisure centres can be found at www.gedling.gov.uk/leisure or for DNA members you can check the app.
A spokesman for Gedling Borough Council said: “We’ll be getting in touch with people who have swimming lessons via letter to let them know where their lessons will be taking place during the closure.”