I know this may be trivial but can anyone tell me if they sell those special shoes for waterparks in Walmart. They're usually blue/black and completely cover the foot, made of a meshy material with like a toggle on the top/front. We're looking for an adult size 6. We can't be doing with traipsing round all the shops (our daughter would never let us anyway) We went to Skegness today (Lincolnshire, east coast of England) and couldn't find any, we were shocked!

Kate