Recreational outdoor sports, such as hiking, mountain biking, and trail running are enjoying increased popularity in Japan and worldwide. Proponents argue that these activities contribute to physical and mental health on the one hand and bring about economic and social benefits for rural areas on the other. At the same time there are concerns of over-use and environmental degradation. Focusing on mountain biking, Prof. Yuichiro Hirano and Prof. Wolfram Manzenreiter will be comparing the current situation in Austria and Japan and try to line out possible futures for sustainable outdoor tourism that benefits rural areas and protect the environment equally.