climbing rock landscape with climbers in danube gorge

abseiling active activities adrenaline adventure altmhl background bavaria bluff cleft cliff climb climber climbers climbing crag cragsman danger dangerous danube enge exercise extreme forest germany gorge hanging landscape leisure man men mountain natural nature outdoor outside park practice people perpendicular rappelling reserve rock scarp scene scenery skills sport sports steep steepsided training trees verticalwalled wall weltenburger face rocky