Part of Skály v Měsíčním údolí, Hranolek has 4 routes documented on climbing.place. Routes range from grade 2 to 7. Routes are listed below with grade, style, and community notes.

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3
From the SW, up the chimney between the Pulpit and the…
Rock Climbing
2
From the valley, up the chimney to the block and then up…
Rock Climbing
7
Up the SW face past the 1st bolt to the edge and up it past…
Rock Climbing Fixed belay
5
Up the left downward-sloping edge past a bolt, n. v.
Rock Climbing Fixed belay