According to chronicles, at the beginning of the 16th century, the Jizera Mountains in the area of Świeradów-Zdrój had already become an object of mining research and exploration. Today, we can admire the effects of centuries of miners' work. Numerous adits and pits stimulate the imagination and encourage research by history and geology enthusiasts.
The geopark is an open-air hiking trail, an unusual attraction in the Jizera Mountains. The first point is located in the village of Krobica. The St. John's Mine is a 350m underground route leading through the St. John's and Leopold adits. You can visit the facility 364 days a year from 10:00 to 16:00, and during peak tourist periods until 18:00. After purchasing a ticket, a guide takes visitors underground into the past, tells them about ancient ore mining, the miners' lives, and the extraction of tin ore. Tours take place every 30 minutes during the high season, and at full hours during periods with less tourist traffic.
For safety reasons, St. John's Mine welcomes children aged 6 and older.