K-24 is a long-distance hiking route in the Koroška region that links five major peaks in a single, continuous loop: Uršlja gora, Smrekovec, Raduha, Olševa and Peca. The classic version is around 80 kilometres long with roughly 5,000 metres of ascent, the original idea is simple: climb all five peaks within 24 hours.
For most people, K24 is better approached as a demanding multi-day trek. But for very fit and experienced hikers, trail runners and fast-packers, it becomes a serious “in one go” challenge – and our home base in Luče is perfectly placed on the edge of the K24 mountains.
The trail follows a mix of marked mountain paths and ridgeline tracks. It is not technically extreme, but it is long, committing and physically demanding, and you are in proper mountain terrain for most of the route.
The five peaks of K24
Uršlja gora (1,699 m)
The westernmost peak on the loop and home to the well-known Dom na Uršlji gori hut and the church of St Ursula just below the summit. It offers wide-ranging views across Koroška and towards the Savinja Alps.
Smrekovec (1,577 m)
A long, forested volcanic ridge rather than a sharp peak. The route passes Dom na Smrekovcu, a welcoming mountain hut and a good place for food or an overnight stop on a multi-day version.
Raduha (2,062 m)
A familiar name if you have stayed in Luče. Raduha is a prominent limestone mountain that rises above the Savinja Valley, with Koča na Loki pod Raduho sitting on its southern flank. From the summit you get big views over the Kamnik–Savinja Alps and across towards Koroška.
Olševa (around 1,930 m)
A long, rocky ridge forming part of the natural border between the Savinja Alps and Koroška. The views into the Solčava region and towards Logar Valley are superb and give a real sense of how the K24 line links Koroška to the Kamnik–Savinja Alps.
Peca (2,125 m)
The highest of the five peaks and the northern anchor of the loop. It sits directly above Črna na Koroškem and provides a fitting “last big climb” before the final descent back into the valley. On clearer days you can see deep into Austria and across much of the Koroška region.
Distance, elevation and difficulty
* Distance: 80–90 km (loop)
* Ascent: roughly 5,000–5,300 m
* Terrain: marked mountain trails, forest tracks, alpine ridges
* Technicality: mostly non-technical hiking, but with steep, rocky sections and some exposed areas on the higher peaks; sure-footedness is essential
* Fast, non-stop challenge: under 24 hours for very fit and experienced mountain athletes
* Strong but not “ultra” hikers: 2–4 days with hut nights
It is graded as a difficult or “heavy” long-distance hike on official descriptions. This is not a first-time mountain route – it is designed for people who are already comfortable with full-day hikes, significant elevation gain and self-reliance in the mountains.
Mountain huts and suggested multi-day options
One of the strengths of the K24 area is the number of traditional mountain huts along the route. These give you flexible options for turning the challenge into a multi-day trek.
Key huts and stopping points include:
* Dom na Uršlji gori – near the summit of Uršlja gora
* Andrejev dom na Slemenu – between Uršlja gora and Smrekovec
* Dom na Smrekovcu – on the Smrekovec ridge
* Koča na Loki pod Raduho – on the southern side of Raduha, above Luče
* Kumer farm (Kmetija Kumer) – in the Koprivna area between Olševa and Peca
* Dom na Peci – hut below the summit of Peca (if included in your variant)
We are happy to help you work out realistic stages based on your fitness, experience and how many hut nights you want.
Doing K24 as a one-go challenge
The original spirit of K24 is to link all five peaks within 24 hours and join “Club 24”. In practice, this means:
* Climbing all five summits
* Covering around 80 km with roughly 5,000 m of ascent
* Moving efficiently through day and night with minimal stops
Attempting K24 in a single push is only suitable for very fit, experienced mountain hikers or trail runners with:
* Strong navigation skills
* Experience of moving safely at night
* A well-thought-out nutrition and hydration plan
* Appropriate kit for rapid changes in mountain weather
If you are tempted by the idea of a full K24 push during your stay with us, we can help you plan a supported option. That could include:
* Drop bags or resupply points at selected huts
* A base in Luče for the days before and after your attempt
* Advice on route choices and realistic pacing
Why base yourself in Luče for K24 and the surrounding peaks?
Luče sits right on the edge of the Kamnik–Savinja Alps, with Raduha and Koča na Loki directly above the village and easy access towards Smrekovec and Olševa. From our door at Discovering Slovenia you can:
* Hike directly up towards Raduha and the Loka hut
* Explore quieter ridges and valleys away from the main tourist routes
* Combine K24 sections with other local trails, biking or running
* Recover properly between long days in the mountains
Our base is set up for hikers, runners and cyclists, with:
* Comfortable rooms and flexible sleeping arrangements
* Drying room and washing facilities for kit
* Route suggestions, maps and GPX files
* Help with logistics, transfers and hut planning
Whether you want to tackle the full K24 loop, link a couple of its peaks into your hiking holiday, or simply stand on Raduha and look across at the rest of the chain, Luče is an ideal place to start.
Get in touch if you would like to talk through options – from relaxed multi-day hikes to fully supported, one-go K24 challenges.
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