yeah Hatter, it's definitely the cinque terre. Almost definitely. Liguria for sure. Probably.
and hey I might as well pitch in with some places.
That's probably not its name, but nobody really named it, so that's just what Daiken refers to it as (or just 'the spring'). It is located some distance away from the village, in an otherwise unassuming crag. You'd probably miss it if you didn't know it was there in the first place. Surrounded by trees and low-hanging vegetation, it is a place of absolute peace. Daiken uses it to practice his chakra control, and also meditates there when troubled. He finds the water excellent for this purpose.