The hotel I have used on my recent visits to Tokyo is one of a group of hotels in one location. Between each of the buildings is a garden. It is a peaceful place to hang out (even when it was as hot and humid as it was when I was first there) and it has temples, bells, a lake and lots of places to rest and contemplate. In the evening, it is subtly illuminated providing a very different feel compared to how it is during the day.
On some occasions, music was piped in. One evening there was a guy playing some sort of flute as he wandered around the garden. I assume he was hired to do so rather than just showing up and playing but you never know. He was fighting the noise of the cicadas when it was hot!
Looking out of the window of my hotel in Minato, there was a pond behind the building. It took a while to work out what it was but, on the weekend, it was easier to see. This is a fishing pond. It is in between all of the hotels and, even on a hot and steamy day, there were plenty of people fishing. I don’t know what the pond was stocked with and what the rules are once you catch something but I was more taken that this existed at all.