majestic qikeng tiankeng in china - stunning panoramic view with lush surroundings and clear blue sky

qikeng tiankeng china scenic landscape majestic sinkhole panoramic view lush greenery natural beauty geological wonder tourist attraction bright sunlight clear blue sky vast cave minimalist stunning vista travel destination outdoor adventure formation spectacular sight deep chasm impressive size dramatic topographical open space tranquil scenery lake water tree forest nature background beautiful green mountain summer river reflection rock alpine environment park valley tourism mountains