source semi-cave in the protected landscape of the kamacnik river canyon - gorski kotar, croatia / izvorišna polupećina

adventure background beautiful beauty canyon cave cavern croatia dark deep drawing entrance environment explore fantasy geology gorski green ground hike hiking hole hollow hrvatska inside izvorišna kamacnik kamačnik kanjona kotar krajoliku landscape light mine mountain natural nature outdoor outdoors outside polupećina protected river rječice rock rocky scene scenery scenic semicave shadow sky source speleology stone summer sunlight tourism trail travel trees tunnel underground view wild wildlife zaštićenom