Question 1

Where is Arakurayama Sengen Park?

Accepted Answer

Arakurayama Sengen Park is in Fujiyoshida, Yamanashi, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of mono does Arakurayama Sengen Park appear in?

Accepted Answer

Arakurayama Sengen Park appears in OP of mono.

Question 3

Can I visit Arakurayama Sengen Park?

Accepted Answer

Yes. Arakurayama Sengen Park is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was mono filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Arakurayama Sengen Park is one of those real places (OP).