What to do on those gray days

With the rainy season visiting soon, gray days in Tokyo are getting numerous. What to do and not feel the gloom? Head for neighborhoods with nothing bu mazes of clustered detached houses fit with lumps of green. There are many such neighborhood in Tokyo by the way, so much actually that the choice is infinite. I would add to the requisite some location with declivities, hills that is. Yesterday was such a gray day in Tokyo but I didn't feel the drag I would have if walking in some busy shopping centers. Hilly greenish neighborhoods are soothing the mind because of the profusion of green that adorns tiny garden, and when no garden is available, covers houses thanks to thick layers of potted plants all around. There is a quality of green for all season but in Tokyo at least, May and June is the richest, lushest, ripest time of the year to enjoy. I spent the afternoon on bicycle getting lost with a vengeance, first at the base of the lovely Hakusan hill, then further atop around the proximity of the Tokyo University campus, where a noisy festival was in full spring, but I avoided like a cat.