Question 1

Where is Kagamiyama Onsen?

Accepted Answer

Kagamiyama Onsen is in Karatsu, Saga, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Yuri!!! on ICE does Kagamiyama Onsen appear in?

Accepted Answer

Kagamiyama Onsen appears in EP1 of Yuri!!! on ICE.

Question 3

Can I visit Kagamiyama Onsen?

Accepted Answer

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

Question 4

Where was Yuri!!! on ICE filmed?

Accepted Answer

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