Question 1

Where is Takashima Castle?

Accepted Answer

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

Question 2

Which scene of Yuru Camp△ does Takashima Castle appear in?

Accepted Answer

Takashima Castle is a real place that appears in Yuru Camp△.

Question 3

Can I visit Takashima Castle?

Accepted Answer

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

Question 4

Where was Yuru Camp△ filmed?

Accepted Answer

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