view of lake lucerne or vierwaldstättersee vierwaldstaettersee or vierwaldsattersee from the pilatus mountain massif, alpnach

alpine alpnach alps amazing background beautiful blue canton destination eco ecology europe european flower forest grass green high idyllic kanton lake landscape lucerne massif meadow mountain mountains natural nature obwalden old outdoor outdoors panorama panoramic peaceful peak picturesque pilatus rock scene scenery scenic schweiz season sky spring summer swiss switzerland travel tree trekking valley vierwaldsattersee vierwaldstaettersee vierwaldstättersee view water wild wonderful