Question 1

Where is Fruit Adventure?

Accepted Answer

Fruit Adventure is in Yamanashi, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Day I Became a God does Fruit Adventure appear in?

Accepted Answer

Fruit Adventure appears in OP2 of The Day I Became a God.

Question 3

Can I visit Fruit Adventure?

Accepted Answer

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

Question 4

Where was The Day I Became a God filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Fruit Adventure is one of those real places (OP2).