Please follow these manners.
Don't damage the garden and facilities.
Don't capture insects and flowers.
Don't capture birds and fishes.
No pets allowed.
No alcohol and party.
Stay in the pass.
No bike.
Shin-Edogawa Park (新江戸川公園) is a Japanese style garden located in west of Shinjuku. It was used to be a house garden of Daimyo Hosokawa.
Tourist Info.
There is no admission.
No parking.
One restroom.
Open: 9:00 to 17:00 (last entry 16:30)
Access
0. at Shinjuku Station.
1. use JR Chuo Line to Iidabashi.
2. use Yurakucho Line to Edogawabashi.
3. walk west (15 min.)
15 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Please follow these manners.
Don't damage the garden and facilities.
Don't capture insects and flowers.
Don't capture birds and fishes.
No pets allowed.
No alcohol and party.
Stay in the pass.
No bike.