partnunsee. beautiful mountain lake above partnun and st.antonien near davos. wanderlust. idyllic lake. quality photo

alps alpine outdoors panoramic graubnden prttigau swimming sulzfluh recreation paradise beautiful landscape nature blue green peaceful rocky scenery switzerland hiking scenic swiss water tourist idyllic mountain partnunsee sky grisons hike view travel sunny summer partnun see lake cold fresh raetikon reflections colorful europe attraction outdoor davos