Question 1

Where is Coast Park?

Accepted Answer

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

Question 2

Which scene of Slow Loop does Coast Park appear in?

Accepted Answer

Coast Park appears in EP2 of Slow Loop.

Question 3

Can I visit Coast Park?

Accepted Answer

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

Question 4

Where was Slow Loop filmed?

Accepted Answer

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