children explore underground caves, an underground karst complex of Cunardo, Lombardy, Italy
Palabras clave
activity,
adventure,
boy,
caucasian,
cave,
cavern,
caving,
children,
children,
curiosity,
dark,
deep,
discovery,
earth,
education,
exploration,
explore,
explorer,
freedom,
fun,
gallery,
game,
geologic,
geology,
cave,
inside,
interior,
children,
lifestyle,
light,
mine,
mineral,
natural,
path,
play,
playing,
rock,
speleology,
stone,
tunnel,
burrowing,
underground,
underpass
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