My heels usually crack in the cold, not the heat, but I am walking on sand all the time.
No, impossible to get anything, as the hotel is not near any shops.
I have got sand shoes but I can't wear them with my fins.
I wear socks as well as a tee shirt and old cotton trousers when snorkelling - otherwise I would burn to a crisp.
I brought Germolene and plasters with me, and I have found a roll of white tape in my suitcase, the kind used for electrical work, and that should keep the plasters on tomorrow. I brought it in case my facemask needed adjusting - it is always handy.
I will ask the kitchen for some olive oil - they are so grateful for my custom I think they will give me anything - there are still only two other guests.