In reply to Mountain Spirit:
> It is hard for me to walk on hot sand at the beach because of my flat feet.
It's hard for me to walk on hot sand at the beach because of my soft, southern feet. Likewise, stoney, pebbly beaches. My wife and I enjoy laughing at each other trying to walk stylishly in/out of the sea on a stoney beach. It's one of my favourite parts of a trip to the seaside.