Along with the giant Santa skeleton, this was one of the first things of interest that I spotted. Although I can’t be absolutely sure, it certainly looks like a long-abandoned pool. I love old, abandoned structures, the more ruined the better, so I was very pleased to come across this one. See here for some more pictures of ruins. The curved branch growing across the pumpkin gives it a somewhat fearsome appearance. I wonder if that was deliberate.

Taken with a Sony RX10 IV