Part of Ostrov - 3 - jižní část, Čtyřhran has 10 routes documented on climbing.place. Routes range from grade 2+ to 8/8+. Routes are listed below with grade, style, and community notes.
Common styles: Rock Climbing, Fixed belay.
Rules
Nature Conservation: Climbing allowed all year round. Nature Conservation Document: Decision 2020, maps authority OP CHKO Kokořínsko1b
OVK: Use magnesium according to sandstone rules, first ascents only with the consent of the administrator.The ČHS rules for climbing in Bohemian sandstone areas apply.
- Chalk is banned.
- No metal protection (cams, nuts, pitons) – only slings, knots and textile "UFOs" between the rings.
- Climb on dry rock only – wet sandstone softens and breaks.
- Do not alter the rock surface.
- Abseil from the summit rings.
Parts of the area lie in Bohemian Switzerland National Park and the Elbe Sandstones Protected Landscape Area, where seasonal closures for nesting birds apply. Check the ČHS crag database before you go.
5+
Údolní cesta
Through the crack in the valley's west wall to the small balcony under the overhang (also… Rock Climbing
4-
S cesta
From the block on the north side by standing on the ledge. Traverse right into the corner… Rock Climbing
6-
Vzpomínka na Vietnam
To the left of the valley route, by lieback to the ring. Up to the left onto the nose and… Rock Climbing
5
S spára
From the gorge between the massif and the tower, overhanging wall to the right onto the… Rock Climbing
5
Máňa
In the left part of the base massif of the tower, along the edge of the pillar over 2Bh… Rock Climbing Fixed belay
4-
Plátenická cesta
From the gorge on the plateau side to the ledge. Through the crack and higher up the… Rock Climbing
4+
Rozporový komín
Through the crack to the place where the chimney narrows, then by opposition to the… Rock Climbing
4+
Soumrak
Over the overhanging SE edge to the bench and to the left to the ring. Through the wall… Rock Climbing