Part of Prosečnice - Lom Borovíčko, Tunel has 4 routes documented on climbing.place. Routes range from grade 4 to 7+/8-. Routes are listed below with grade, style, and community notes.

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7+/
First crack from the left on the longer side of the Tunnel.…
Rock Climbing Traditional Climbing Friends Fixed belay Route in shadow Vertical wall Spare Route
4
Through the corner, higher up via a hand crack to the top.
Rock Climbing Traditional Climbing Friends Fixed belay Route in shadow Laid wall Spare Route
5
Along the diagonal crack to the right in the shorter wall…
Rock Climbing Traditional Climbing Friends Route in shadow Danger Laid wall
6-
In the middle of the longer wall via an interrupted hand…
Rock Climbing Traditional Climbing Friends Route in shadow Vertical wall Spare Route Good For Training