Čertův most, Natural arch in Blansko, Czech Republic

Čertův most is a limestone arch in the Suchý žleb gorge, about 500 metres from Kateřinská Cave. It consists of one large and one small opening left from a former cave; the arch is 15 metres long, up to 10 metres high and 1.2 metres thick.

Karel Absolon's book on the Moravian Karst records that the arch was a frequent destination in the 19th century and, until the caves opened, practically the second attraction after Macocha. Count Hugo František Salm had a small pavilion built opposite the arch at the start of the 19th century as shelter from rain. F. Richter drew the scene in 1833 and E. Herold painted the bridge in 1875.

A legend tells of Jura, who was caught poaching by the lord of Blansko Castle and had to bring eaglets from the arch to save his life. A wise woman from the rocks gave him a cross against evil spirits and a staff to tame the old eagles, warning him to take nothing else. He obeyed, though the nest held treasures; the lord later went for them himself and perished.

Access involves a 500-meter walk along an asphalt road from Kateřinská Cave parking area, followed by a short climb on a marked path. Proper footwear is recommended, as the route to the arch can be uneven and the climb is moderate.

Near the arch lie Čertova branka, a smaller opening, and the Čertova okna cave; bones of reindeer, beavers and wolves have been found in the surrounding slopes. The arch itself measures 15 metres in length, 10 metres in maximum height and 1.2 metres in thickness.