Mount Untersberg is a power place of earth, according to the Dalai Lama its the heart chacra of our planet. The views are amazing, only go up in good weather, otherwise take the cable car.
If you hike up: wear suitable hiking gear, bring hiking sticks, enough water and wear layers. For experienced hiking folk only: Dopplersteig ropeway, Reitsteig path equally hard, but less scary.