Why is there red snow? How can you tell the difference between a blueberry and a bilberry?
This new, free app from IDM Südtirol / Alto Adige explains this and lots of other natural riddles. Five tours of varying degrees of difficulty show the many different faces of nature in South Tyrol that can be discovered while out hiking.

This app is available from the App Store and Google Play as a test version in English, German and Italian.