Grotto Calgeron
Grotto Calgeron (cave of Calgeron), also known as the GB Trener cave, is a natural cavity that is located near the village of Grigno in Valsugana in Trentino.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).
Grotto Calgeron (cave of Calgeron), also known as the GB Trener cave, is a natural cavity that is located near the village of Grigno in Valsugana in Trentino.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).