Question 1

Where is Ajiro Tunnel?

Accepted Answer

Ajiro Tunnel is in Iwami, Tottori, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Free! does Ajiro Tunnel appear in?

Accepted Answer

Ajiro Tunnel appears in EP7 of Free!.

Question 3

Can I visit Ajiro Tunnel?

Accepted Answer

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

Question 4

Where was Free! filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ajiro Tunnel is one of those real places (EP7).