going up the mountain

action active activity alpine alpinism alps arduous ascent challenge challenges challenging climb climbed climber climbers climbing cloud clouds cold danger dangerous demanding descent determination difficult down effort endurance endure expedition exposure extreme free freedom glacier go goal going group hard high hike hiker hiking holiday ice mountain mountaineer mountaineering mountaineers mountains nature outdoors people range reach reaching risk risky rope snow sport sports strenous summer summit swiss switzerland taxing team teamwork together top tough trekking up uphill way white winter