It's Squirrel Forest, one of several squirrel-centered mini-zoos scattered around Japan, although striped squirrels (aka chipmunks) seem to be more of the specialty here. Dozens of the little critters cavort around their woodsy setting, and admission is free.
Located inside Green Center in Shimin no Mori.
Cafe Salvador (Cafe) 3.25 km  (Omiya) |
Hajime (Ramen) 16.89 km (Itabashi-ku) |
Hanamasa (Itabashi Shimura) (Retail) 18.64 km (Itabashi-ku) |
Hanamasa (Nishi-Arai) (Retail) 20.91 km (Adachi-ku) |
Inosho (Ramen) 21.25 km (Nerima-ku) |
Rocco's (American) 21.69 km (Oji) |  |
Costco Shinmisato (Retail) 21.79 km (Saitama-ken) |
White Fox, The (International) 21.82 km (Oji) |  |
Shamaim (Israeli) 21.92 km (Ekoda) |  |
Buddy (Bar) 21.92 km (Ekoda) |  |
Hanamasa (Takinogawa) (Retail) 22.27 km (Kita-ku) |
Ikea (Swedish) 22.49 km (Saitama-ken) |  |
Palmyra (Middle Eastern) 22.85 km (Ikebukuro) |
Phrik (Thai) 22.90 km (Ikebukuro) |  |
Marhaba (Pakistani) 22.90 km (Ikebukuro) |  |
Agalico (Misc. Southeast Asian) 23.05 km (Ikebukuro) |  |
Miyarabi (Okinawan) 23.07 km (Ikebukuro) |  |