It was a breathtaking ~100 acre property. I don't actually know where the boundaries of the property are, but my best guess is that I walked through only about 1/3 or 1/4 of it. One side of the property is just under 1 kilometre long (or 0.62 miles).
The entrance to the property:
A small portion of the property looked like it was used as a vineyard/winery perhaps, or some other kind of crop:
There's a pond or dam a bit further down:
There was some kind of a 'treehouse':
Here is a photo of the treehouse taken from the top of one of the ridges visible from the treehouse window. My car is visible on top of the ridge to the right of the treehouse: