Kněhyňská jeskyně

Kněhyňská jeskyně is a protected natural monument tucked into the southeastern slope of Mount Kněhyně (1,257 m) in the Moravian-Silesian Beskids, within the municipality of Čeladná in the Frýdek-Místek district. The cave system sits at roughly 1,045–1,050 metres above sea level, about 750 metres below the summit, surrounded by dense mountain forest.

What kind of cave is this?

Unlike karst caves formed by dissolving limestone, Kněhyňská jeskyně belongs to the category of pseudokarst caves — its passages and fissures developed within sandstone flysch rock, a formation typical of the Beskids' geology. This makes the cave a valuable geomorphological site, illustrating how weathering and gradual rock-mass movement shape flysch mountain ranges over time.

How large is the cave system?

The system stretches roughly 280 metres in total passage length and reaches a depth of 57.5 metres. It comprises ten distinct cavities along with four fissure chasms, forming a complex, multi-level structure inside the mountainside.

Why is the cave protected?

Beyond its geological value, Kněhyňská jeskyně holds major zoological importance. It serves as one of the region's key winter shelters for endangered bat species — a substantial colony of the greater mouse-eared bat (Myotis myotis) regularly hibernates here, a species highly sensitive to disturbance and microclimate changes. Because of this colony, and the delicate balance of humidity and temperature inside the cave, the site has been designated a protected natural monument.

Can visitors go inside?

No. The cave entrance is sealed with a metal grate and is closed to visitors. This measure protects the hibernating bat colony from disturbance and preserves the cave's fragile internal microclimate, which could be disrupted by regular human traffic. The cave can only be viewed from the outside, while hiking the slopes of Kněhyně.

How do you get there?

Access follows hiking trails in the Moravian-Silesian Beskids that start near Čeladná. The route climbs through mountain forest toward the summit of Kněhyně, with the cave located on a traverse across the slope, set apart from the main ridge. It's worth planning the visit as part of a longer ridge hike connecting nearby Beskid peaks.

Frequently asked questions

Is there a marked trail leading to the cave? The area lies within the network of hiking trails of the Moravian-Silesian Beskids leading toward the Kněhyně summit; the cave itself sits along the approach route, though entry inside is not possible.

Why is the cave sealed with a grate? The grate protects the hibernating bat colony, including the greater mouse-eared bat, from disturbance, and safeguards the cave's delicate internal microclimate from the impact of visitors.

What's the difference between a pseudokarst and a karst cave? Karst caves form in soluble rock, mainly limestone. Pseudokarst caves, like Kněhyňská jeskyně, develop in other rock types — here, flysch sandstone — through weathering and rock-mass movement rather than dissolution.

How deep and long is the cave? The system totals about 280 metres of passages and reaches a depth of 57.5 metres, comprising ten cavities and four fissure chasms.