Sengenyama is a fantastic little nature reserve. There is a small shrine on the tallest hill which has a long unkempt staircase leading up to it. Alternatively you can walk along the ridge from the other side of the reserve. You can access the Tama cemetery over a bridge from this spot. It is also possible to see Fuji-san on a clear day. In the winter the trees are bare but they come back to life in the spring and are home to many insects and birds. Note that there is limited lighting here, and be careful if you visit following rain, it can get muddy!