Toshimaen Theme Park
Apparently one of the biggest theme parks in Japan is Toshimaen. The north part of the park has various roller-coasters, one of which is emblazoned with (what I’m told is) the park’s name. The south part is a water park which is packed full of people.
There’s more info on the official park website (if you can read Japanese) and ground level shots on Theme Park Review.
Thanks: Masaki Tanji








