Question 1

Where is Ishii Shouten?

Accepted Answer

Ishii Shouten is in Naoshima, Kagawa Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Summer Pockets does Ishii Shouten appear in?

Accepted Answer

Ishii Shouten appears in EP1 of Summer Pockets.

Question 3

Can I visit Ishii Shouten?

Accepted Answer

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

Question 4

Where was Summer Pockets filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ishii Shouten is one of those real places (EP1).