Riding rocks, rails and reservoirs, half a mile underground, in Slovenia
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Aug 18, 2022 鈥 5 min read
At Eastern Slovenia's Me啪ica Mine you can explore the upper reaches of the mine by bike, descend to the lowest levels by train, and go kayaking along the lakes of spring water that have pooled half a mile (800m) below ground 漏 Photo courtesy of Podzemlje Pece
Slovenia鈥檚 remote Koro拧ka (Carinthia) region, a mountainous area running along the country鈥檚 northern border with Austria, is firmly off the beaten track. Even for Slovenians, this traditionally industrial district feels out of the way, and most visitors come to see the around Unesco-listed, cross-border . But I鈥檝e come to find out what this under-the-radar region offers for intrepid travelers, and my guide for the journey 鈥 Matej Kandare, director of 鈥 has promised several days of excitement.
On this day, he鈥檚 planned a trip to Koro拧ka鈥檚 , a former lead and zinc extraction facility buried deep within a 7,000ft (2,125m)-high outcropping called Mt Peca. I express polite interest 鈥 how exciting can a lead mine be? I had no idea I was about to embark on an adventure I鈥檒l remember the rest of my life.
The 鈥榁alley of Death鈥
We arrive on a sunny, early-summer morning. Over coffee, I learn about the mine from one of the coordinators of the Geopark, Suzana Fajmut 艩trucl, and mine guide Marko Iv膷i膰. From Roman times to the end of the last century, the mine was a bountiful source of lead ore and rare minerals. Over the centuries, nearly 600 miles (1,000km) of excavation tunnels were burrowed into the mountain to a depth of nearly 3,300ft (1,000m).
Working conditions for the miners were so harrowing, the mine and surrounding areas were referred to as the 鈥榁alley of Death.鈥 My ears perk up at that last part, but my hosts assure me the mine is perfectly safe for a short-term visit.
I鈥檓 still not certain what we鈥檒l be doing in the mine, until I see Marko wheel over a couple of mountain bikes, along with helmets and miner-style headlamps. Flashing a smile, he tells us the plan for the morning is to explore the upper reaches of the mine by bike. Then in the afternoon we鈥檒l descend to the lowest levels by train, and go kayaking along the lakes of spring water that have pooled half a mile (800m) below ground.
I feel a twinge of claustrophobia, that鈥檚 quickly overridden by curiosity.
Under-the-mountain biking
A blast of cold air greets us as we push open the heavy metal doors to the mine and walk our bikes inside. Temps below ground hover around 50 degrees Fahrenheit (10 degrees Celsius) year-round, and we鈥檙e wearing spring jackets to stay warm. Our eyes need a couple of minutes to adapt to the blackness. Marko starts the ride off slowly to allow us to adjust to the path鈥檚 narrow, uneven terrain and occasionally low-hanging ceilings. But soon he picks up the pace and the exhilaration of cycling inside of a mountain kicks in.
The surface is rock-strewn but flat; the length of the trail, about 3 miles (5km), is suited to a confident beginner or intermediate rider (and kids over the age of 10). Advanced mountain bikers may want to try their luck the mine鈥檚 more challenging track, dubbed the 鈥淏lack Hole,鈥 etched ominously into the mine鈥檚 even-narrower crevices.
Every 10 minutes, Marko pauses to point out some of the mine鈥檚 features: giant caverns of natural beauty, or big, rusting buckets of ore sitting for decades and which attest to the day-to-day difficulties of working a mine. Here and there he points to surviving veins of white, gem-like calcite or rarer, rust-brown wulfenite still embedded in the walls (an on-site museum highlights the many metals and minerals that have been found inside the mine). After a little more than an hour of riding, we re-emerge smiling 鈥 if temporarily blinded 颅鈥 into the bright summer sunshine.
Underground rails and reservoirs
For the afternoon adventure, Suzana has promised a train trip, and in my mind I picture a typical ride with comfortable seats and windows. Instead, Marko, Matej and I climb into a tiny box of a carriage, windowless and firmly locked.
These carriages, each no wider than the length of my arm and only a few feet long, were once used to carry as many as eight miners at a time as deep as 1.8 miles (3km) below the surface. It鈥檚 hard to imagine today 鈥 the carriage feels cramped with just the three of us inside. Bent over in that dark box, rattling ever-downward into the mine, I have a deep appreciation for the educational aspect of our visit. This, after all, was a daily reality for thousands of men who once worked these seams.
Once inside the mine we put on helmets, headlamps and gloves, and descend a further 600 steps to the chamber鈥檚 low-lying pools of fresh water. Here, we pause momentarily in a heated dressing room to don chest-high waders that will protect us from the chilly (43掳F / 6掳C) water. After another careful descent along damp, concrete steps, we walk into the water and fetch our kayaks.
For the next 45 minutes, we鈥檙e free to aim our boats wherever we want and to follow the narrow channels wherever they lead. At half a mile below the ground, the space feels unexpectedly airy and peaceful; the silence is broken only by our laughter and the sounds of paddles dipping into the clear water. Through the glint of my lamp, the water throws back shades of green and blue. It looks so refreshing and inviting, I feel a temporary urge to dive in (and then I remember the temperature).
It dawns on me I鈥檒l likely never forget this moment.
Practical information
The mine鈥檚 activities are not recommended for people who experience serious claustrophobia, children below the age of 12 and those without at least an intermediate level of fitness. The mine is best reached by car. Advance reservations are required for all tours. There are plenty of other adventures in the region. For instance, the in Velenje, 40km (25 miles) southeast of Me啪ica, offers served in the mine.
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