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Klek Mountain

A rock thumb above Ogulin where Croatian climbing started, and where witches were said to gather.

Updated 19 October 2026

WhereKarlovac County
Nearest cityOgulin about 5 km; Karlovac about 50 km
Best seasonMay to October
Time to allowA full day
Getting thereMarked trails from Bjelsko above Ogulin; the summit rock needs scrambling or climbing
EntryFree

Klek rises to 1,181 metres above Ogulin and ends in a bare rock head that from the town below reads as a giant lying down, which is the shape the legends work with: Klek was held to be a gathering place for witches, who flew here on storm nights, and the folklore is dense enough that it still gets repeated. The rock face was where organised climbing in Croatia began - routes were being put up here from the early twentieth century and the mountain remains a training ground. The walking route to the shoulder is straightforward; the summit block itself requires scrambling and is not a walk. A mountain hut sits below the face.

History

Klek has long had its legend: a 17th-century tale makes its summit a meeting place of witches and fairies on stormy nights. In 1605 the Vlachs of Gomirje named Mali Klek as one of the bounds of the land they lived on. Scientists came at the end of the 19th century: on 4 June 1898 a botanical and entomological party made up of Dragutin Hirc, Nikola Faller and August Langhoffer set out from Zagreb and next day climbed from near Musulin Potok to the summit in five hours and presented their findings in Ogulin, which inspired a second ascent on 14 August with Miroslav Kulmer, president of the Croatian Mountaineering Society, and the botanist Antun Heinz returned on 1 October 1900. Climbing came next: the first rock ascents were made in 1917, and the east and south faces trained many Croatian climbers in the early 20th century; the longest route is 150 metres. The mountain is also one of the best-known botanical reserves in Croatia (Wikipedia, Klek mountain, Croatia).

Highlights

  • A rock head above Ogulin - reading as a lying giant from the town.
  • A witches' mountain in folklore - the stories still current locally.
  • Where Croatian climbing began - routes from the early twentieth century.
  • A hut below the face - the base for both walkers and climbers.

When to go

May to October; winter needs proper equipment. A full day.

Before you go

The summit block is a scramble with exposure, not a hiking route, and people get into trouble on it. The bura wind hits the ridge hard. There is no water on the route above the hut.

Nearby

Ogulin is below; Plitvice is south-east.

Key facts

Local nameKlek (Croatian)
Elevation1,182 m (3,878 ft)
Location45.2603° N, 15.1455° E · map

Source: Wikidata, item Q830302, read on 18 October 2026.

What to pack for Klek Mountain

Chosen from what this place is for. Tap a kit for the full checklist.

  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Layers for big temperature swings - Warm sun by day, near-freezing at night, even near the equator. Find on Amazon
  • Shelter suited to the place - Tent, tarp or hut booking - match it to the terrain and rules. Find on Amazon
  • Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon

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