the vibrant aquamarine colour of mueller lake, walking the hooker valley track, aoraki mt cook national park

snow mountain sky water nature landscape rock glacier hill valley range outdoors cloud lake tree rocky ice reservoir outdoor person travel peak natural background scenery wilderness scenic highland view hike covered land bank side watercourse area glacial landform high field larch panoramic cap large plateau altitude group mueller hooker national park vibrant aquamarine colour walking stunning track aoraki cook