Retreat | Tokyo and the Vicinity
Todoroki Keikoku (Valley)
Here's a good place for a day of forest walking: Todoroki Keikoku in Setagaya, Tokyo.
Parks and Gardens in Tokyo | Kyu-Furukawa Gardens
The Kyu-Furukawa Gardens features a Western-style garden adorned with approximately 200 roses of 100 different varieties, as well as a Japanese garden designed by the legendary gardener Jihei Ogawa.
Kasai-Rinkai Park
Kasai-Rinkai Park in Tokyo, known for the largest aquarium and a view of the Tokyo bay down from the Ferris wheel, has more to see and have fun.