@chitaka45 just published some gorgeous photos of Shinsen-en in the snow (I love their photos in general BTW, Kyoto's shrines and temples in all their glory!). I found this place by chance while walking to Nijô-jô in 2016 - different season, different colours.
Part garden, part temple, part shrine, Shinsen-en dates back to the start of the Heian period, when it was an Imperial property. One of its most distinctive features is the Dragon Boat, which apparently serves for Moon viewing events. Several Japanese seasonal traditions, like Moon viewing and cherry blossom viewing, are said to originate in Heian-period Kyôto.