Until about 2 years ago, this park was surrounded by large pine (or other conifer) trees. At that time, the trees were cut and the park was named "Eco-park". I dont know why it is named so. Anyway, today it was very cold and some snow was fallen on the ground.
Tama area is the name of the western part of Tokyo Metropolis. It consists of 26 cities, 3 towns and a village. A lot of people (about 4 milion) live in a eastern half part of the area. However, there are many mountains in the western part of Tama area, and there are very little flat land. Many hiking spots are in the western area, so you can enjoy walking on the trail, camping, and so on. If you see the beautiful mountain scene, you may not believe this is also in Tokyo.