We found the following Swimming classes around SL3

Beaumont House Hotel, Old Windsor, Windsor SL4 2JJ

Elizabeth Hawkes Way, Off Cannon Lane, Maidenhead SL6 3EQ

Hatch End Swimming Pool, Uxbridge Rd, Pinner HA5 4EA

Dryburgh Rd, London SW15 1BL

The Avenue, Sunbury-on-Thames TW16 5EQ

Novotel London Heathrow, Hotel, Cherry Ln, West Drayton UB7 9HJ

Swimming Pool at Danesfield Manor School, Rydens Ave, Walton-on-Thames KT12 3JB

Ferry Ln, Shepperton TW17 9LH

Holiday inn, Manor Ln, Maidenhead SL6 2RA

Wexham Street, Stoke Poges, Slough SL3 6NB

The Arena Club, Stockley Park East, Hayes, Uxbridge UB11 1AA

Twickenham Stoop Stadium, Stoop Memorial Ground, Langhorn Dr, Twickenham TW2 7SX