Stock photography, photos: skiing tunnel, Finland Stock photos of Indoor practice cross country skiing tunnel, Finland Photograph: © Esa Hiltula Click for a larger image and more information Keywords associated with this stock photo: Indoor, practice, people, cross, country, skiing, group, working, together, groupwork, team, teamwork, teamworking, work, tunnel, ski, skiers, snow, sports, wintersport, winter, practicing, activity, leisure, exercise, training, trainee, athlete, travel, tourism, tourist, vacation, tracks, recreation, activities, recreational, location, unusual, all, weather, exotic, Vuokatti, Sotkamo, Finland