Forest whispers in the Gassner tree house Your holiday nest in the forest. A retreat to snuggle up, nest and enjoy. 147m² in the middle of the treetops. To live and enjoy at lofty heights - with the best view of the surrounding mountains. A cosy hideaway for a relaxing holiday for two or with the family. Genuine tree house luxury with hotel character - including enjoyment and relaxation at the hiking & wellness hotel Gassner.