View from below of blue sky with white clouds from the sinkhole in the Caucasus. High rocky walls of the underground cave.
Palabras clave
russia,
caucasia,
landscape,
scenery,
scenic,
nature,
natural,
highland,
mountain,
mount,
summer,
tree,
cloudscape,
beautiful,
destination,
environment,
hill,
travel,
vacation,
beauty,
hike,
tour tourism,
cliff,
stone,
ancient,
sky,
rock,
environmental,
alpine,
hiking,
trekking,
sinkhole,
underground,
geologic,
geology,
hole,
limestone,
dangerous,
tunnel,
shaft,
shale,
archaeology,
cave,
caving,
chamber,
landmark,
rocky,
light
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