This pond was once the outdoor pool of a grand resort hotel in Briarcliff Manor, NY – the village where I live. It was called the Briarcliff Lodge and it was built by Walter W. Law, the founder of Briarcliff Manor.
To get a feel for what it must have been like to have been staying there during its heyday in the 1920s take a look at this short (around three minute) video: A Video Tour of the Briarcliff Lodge.
Taken with a Sony A6000 and Venus Optics Laowa 85mm f5.6