Climbers on Breithorn mountain, with the Matterhorn in the background, Zermatt, Valais, Swiss Alps, Switzerland, Europe

travel destination travel photography colour image colour color image color horizontal three people male men adult female women outdoors outside day hiker climber breithorn mountain matterhorn zermatt valais swiss alps switzerland europe sport hiking walking mountain mountain range extreme terrain effort teamwork determination discovery adventure snow walking hiking blue sky clear sky scenics scene scenes scenic scenery landmark uphill alps alpine