One of the biggest parks in all of Japan attracts a wide array of people such as dog owners, bongo drummers, joggers, cyclists, musicians, and artists all enjoying their various intrests. Sundays are the best days to go when the park sees the most traffic. There are countless festivals and events. The spring and summer are usually more international and occasionally earth and environmental events and often cheap flea markets. It’s also advisable to buy drinks and snacks outside the park as vendors inside charge more.