woman hiking in rila mountains on the way to musala peak in bulgaria on a sunny day in autumn, fall

adventure autumn backpack backpacking beautiful blue bulgaria clear cloud clouds countryside day europe fall field flare forest grass green hike hiking hikking hill landscape lense meadow mountain mountains mountaneering musala nature outdoor overlooking panorama peak picturescue region ridge rila scenic sky sumitting summer sun sunny sunshine travel tree trees trekking valley view walking way woman