The area is access sensitive
To ensure the safety of everyone, when climbing during the weekends, climbers are urged to avoid the sectors that are close to the path, namely: Pop folk (East entrance - left side), Nepobedim (Middle part - right side), Kak shte gi stignem (Middle part - left side) , and El Choro (West entrance - left side). Instead use the sectors: Hip Hop (East entrance - right side), Black Metal (Entrance part - right side), North (Entrance part - right side) - without the section with "Pchelichkata Maya", and Podaruk(outside the cave).
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Prohodna Cave is located just next to the village of Karlukovo. Follow the road to Karlukovo and then approach for the cave is very well sign posted. The nearest big city is Sofia, which is about an hour and a half away. There is parking right next to the crag, just remember not to obstruct the way for the locals and agriculture work. The parking is on a dirt path so approach it gently. There is no shade.
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Alternatively you can take a train from Sofia to Karlukovo. Once you get off at the train station, the crag is about a 40 minute walk on a slight up-hill road.
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Prohodna cave has one of the easiest walk-ins. After you park the car you will see the East entrance of the cave. From the car park to the cave is less than a 5 minute walk.