The Frasassi Caves are a marvel to behold. We aren’t just talking your run of the mill underground pebbles and rocks. These caves in Le Marche were formed thanks to the river that runs above them. The caves are truly enormous, wonderfully cool year-round at 14° Celsius, and they have a wide variety of stalactites and stalagmites (there is a “giant”, a crystallized lake, a room filled with “candles” and another section looks like organ pipes). Abisso Ancona is so big Milan’s Duomo could comfortably fit, with room to spare. Of course, once you walk into the caves you will lose all sense of proportion as you behold the enormity of the formations and the surrounding bigger and smaller caves.
A most amazing experience is the Percorso Speleologo, which takes you behind the scenes and off the beaten track into tight passageways, downward spirals, uphill climbs, and slimy clay tunnels. You will be asked to don rubber boots, a jumpsuit, and a helmet with a battery operated light on it as your group is sent on its way on a one-of-a-kind journey of discovery.
Certainly not for the faint of heart, because as you shimmy over the clay, trying to get a foothold onto the stalagmites and a somewhat firm grip onto the slippery stalactites, you will be wondering why on earth you signed up for this crazy adventure. That is until those tiny tunnels lead you into a large opening where your guide will ask you to simply sit. As you marvel at the grandeur before you, you will slowly, one by one, turn off the lights on your helmets. And it is there, in the absence of light, which is darker than the darkest night you can imagine, that you will understand that this crazy adventure has taken you into unchartered and eye-opening territory. And as you are hosing down your boots at the end of your 2 hour tour, you will be mentally checking your calendar to plan another trip to Genga’s Grotte di Frasassi.