The Isle of Wight is not blessed with an abundance of swimming pools or fancy gyms and indeed we could really do with an Esporta or Virgin Active here, if you happen to see this Richard...
For keen water babies you will always find somewhere on the Island to make a splash:
Medina Leisure Centre, Newport - 01983 523767
The Heights, Sandown - 01983 405594
Waterside Pool, Ryde - 01983 563656
The 25 metre pool has a retractable roof so brings the sunshine to your swimming pleasure during the summer season.
West Wight Sports Centre - 01983 752168 - I personally like this one the best as, when I go on a Sunday morning there is never more than about 10 people in the pool at one time...