The first global research undertaken through the youth hostel network shows that Hostelling International is leading the way. Check out the results from our Sustainable Travel Survey! The first global research undertaken through the youth hostel network shows that Hostelling International is leading the way. Check out the results from our Sustainable Travel Survey! The first global research undertaken through the youth hostel network shows that Hostelling International is leading the way. Check out the results from our Sustainable Travel Survey! The first global research undertaken through the youth hostel network shows that Hostelling International is leading the way. Check out the results from our Sustainable Travel Survey! The first global research undertaken through the youth hostel network shows that Hostelling International is leading the way. Check out the results from our Sustainable Travel Survey!