In cooperation with booking.com: Book your next trip now Posted on 26. April 202226. April 2022 by Christoph Sammer In cooperation with booking.com you can now book your next trip on this website and support the Austrian Youth Hostel Association. Did you know that there are over 25,000 hostels to book on booking.com? Book now with booking.com: Booking.com Booking.com Posted in Blog, News and tagged Book, Online Booking, Travel, Worldwide.