Question 1

Where is Karuizawakai Tennis Court?

Accepted Answer

You can see the exact position of Karuizawakai Tennis Court from the map coordinates and the Street View link.

Question 2

Which scene of Waiting in the Summer does Karuizawakai Tennis Court appear in?

Accepted Answer

Karuizawakai Tennis Court appears in EP3 of Waiting in the Summer.

Question 3

Can I visit Karuizawakai Tennis Court?

Accepted Answer

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

Question 4

Where was Waiting in the Summer filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Karuizawakai Tennis Court is one of those real places (EP3).