There are many understandings of Friluftsliv and there is no translation of the term into other languages. I have read a lot about it and I have experienced a lot of Friluftsliv. The in my opinion most precise and most beautiful understanding of Friluftsliv is the one I encontered some years ago. It is what Gelter calls Genuine Frilufstliv. It is also the most beautiful paper I have ever read, so it definately worths it reading it!
Enjoy 🙂