Search for local swimming pools for hire

I am looking for a person who could find swimming pools for hire to provide swimming lessons. The venues should be in Kent area (Sevenoaks, Maidstone, Tunbridge Wells, Tonbridge, Gravesend, Malling etc.) . Swimming pools could either be private (in the house), in a leisure centre, fitness club, hospital, local school, golf club, hotel etc. Vast majority of leisure providers already offer swimming lessons and will not accept any offers from external private swimming schools.
I would like to expand my swimming school and therefore I am looking for more venues. I have tried to do it myself but no luck so far.
Thank you