Borgio verezzi cavern in italy was discovered by three young boys in 1933 .
意大利的borgioverezzi洞穴是由三个男孩于1933年发现的。
After swimming through a small opening in the rocks at the base of a towering cliff , kopisch found himself in a large cavern where the water glowed , he would write , " like the light of a blue flame . " It made him feel as if he were floating in an " unfathomable blue sky . "
