lake grubersee in a heart and haidachstellwand mountain, rofan alps tirol

mountains lake tirol rofan brandenberger alpen alps austrian heart landscape tourism shape hiking peak green blue sky horizontal outdoors mountaineering haidachstellwand nature beautiful scenery sunshine scenic idyllic turquoise stunning space autumnal austria achensee shaped path trail destination resort seasonal september october sunny slope grubersee mountain tirol autumn