Question 1

Where is Daishin?

Accepted Answer

Daishin is in Oarai, Ibaraki Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Girls & Panzer does Daishin appear in?

Accepted Answer

Daishin appears in EP4 of Girls & Panzer.

Question 3

Can I visit Daishin?

Accepted Answer

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

Question 4

Where was Girls & Panzer filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Daishin is one of those real places (EP4).