To swim or not to swim

Broadstairs tidal pool is still advertised as a family attraction but I am not sure I would want to swim in it. In Broadstairs to track down family graves and visit churches that the ancestors got married in. Extra is Uncle Graham attacking the very overgrown grave of my great grandparents. We went back the next day and  found the surrounding area had all been magically cleared.   We must have pricked the conscience of the grave-yard gardeners.