What do you do when your vacation in the south of France is hit by rain? We locals were happy for the rain a couple of weeks ago–it had been too long and our gardens were wilting from thirst. But for vacationers, so many of the attractions involve outdoor activities–wandering around old villages, hiking through the countryside, exploring châteaux ruins.
With some recent visitors, we went underground. The mountains, like Emmental cheese, are full of holes. These holes were carved by water, not bacteria (in case you wondered how those holes got into the cheese–they’re bubbles formed by gases emitted by bacteria).
The Grotte de Limousis, just north of Carcassonne, is particularly pretty, and easy to walk through, making it appropriate for most ages (but not those in strollers or wheelchairs–there are some narrow spots and some steps). The series of caves are big and well-lit, so you don’t feel claustrophobic.
The cave winds a kilometer underground through three “rooms.” The first is the Column Room, because of how many columns there are–columns where stalactites (the ones that hang down) and stalagmites (the ones that rise from the ground) grew together.
The ballroom got its name because the nearest village, Limousis, actually used it as a party room for the annual village dinner, held in October to close the grape harvest. The acoustics are amazing, and the floor is naturally flat, having formed when the room was half-filled by a lake. Limestone deposits crept across the lake’s surface like ice, then hardened. The water drained away, leaving the bottom hollow, hence the drum effect. The floor is as smooth as the surface of an icy lake–one unperturbed by wind or anything.
There are two “lakes.” In one, the level of the water rises and falls. It never rises above the tallest stalagmite, with the highest level in summer–after all the rains of winter and spring have had time to filter down. By November it’s dry–the effect of our typically rain-free summers. The other lake has a shower pouring into it. It’s green, which indicates it’s at least two meters (six feet) deep. Limpid water is the same temperature as the cave–14 Celsius, or 57 Fahrenheit–but the falling water is colder–8 Celsius or 46 Fahrenheit–too chilly to take a dip! The water is potable, but not too much–while it doesn’t contain bacteria or any living organisms due to the lack of light, it does contain lots of calcium, so you would get kidney stones.
The final room–spoiler alert–contains a huge crystal of aragonite, four meters tall and 10 meters wide (13 feet tall and 32 feet wide). It grew thanks to perfect conditions that were undisturbed for millennia. It’s unusual, not only for its size but for the variety of shapes, from snowflake-like crystals to round bulbs. I’ve been to the Grotte de Limousis five or six times and it still takes my breath away. I never would have put it on a top 10 list until I actually went. Also a great respite on a hot summer day!