Question 1

Where is Oarai Marine Tower?

Accepted Answer

Oarai Marine Tower 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 Oarai Marine Tower appear in?

Accepted Answer

Oarai Marine Tower appears in EP4 of Girls & Panzer.

Question 3

Can I visit Oarai Marine Tower?

Accepted Answer

Yes. Oarai Marine Tower 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 Oarai Marine Tower is one of those real places (EP4).