Question 1

Where is Onnaseki Park?

Accepted Answer

Onnaseki Park is in Miura, Kanagawa Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Rascal Does Not Dream of Santa Claus does Onnaseki Park appear in?

Accepted Answer

Onnaseki Park appears in EP2 of Rascal Does Not Dream of Santa Claus.

Question 3

Can I visit Onnaseki Park?

Accepted Answer

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

Question 4

Where was Rascal Does Not Dream of Santa Claus filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Onnaseki Park is one of those real places (EP2).