Question 1

Where is Kochi Castle?

Accepted Answer

Kochi Castle is in Kōchi, Kochi Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Ocean Waves does Kochi Castle appear in?

Accepted Answer

Kochi Castle is a real place that appears in Ocean Waves.

Question 3

Can I visit Kochi Castle?

Accepted Answer

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

Question 4

Where was Ocean Waves filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Kochi Castle is one of those real places.