Question 1

Where is Kaiko Shrine?

Accepted Answer

You can see the exact position of Kaiko Shrine from the map coordinates and the Street View link.

Question 2

Which scene of Waiting in the Summer does Kaiko Shrine appear in?

Accepted Answer

Kaiko Shrine appears in EP10 of Waiting in the Summer.

Question 3

Can I visit Kaiko Shrine?

Accepted Answer

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

Question 4

Where was Waiting in the Summer filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Kaiko Shrine is one of those real places (EP10).