Mostnica Gorge (Korita Mostnice) is the quietest canyon in the Julian Alps: a twenty-minute walk from Lake Bohinj, the river has carved two kilometres of impossibly green potholes, up to 20 metres deep. Entry costs €4 in summer 2026 (free with the Julian Alps: Bohinj card), the loop takes about an hour and a half, and if you continue to the end of the Voje valley you're rewarded with a 21-metre waterfall. While the crowds queue at Vintgar, here you mostly meet locals. I've been coming back every summer for twenty years — here's the full guide.
Why Mostnica instead of the famous gorges?
Slovenia has more celebrated gorges — Vintgar near Bled and Tolmin on the Soča side — but Mostnica has three things they don't: no crowded boardwalks (you walk a real forest trail along the canyon rim), an entrance fee two to three times lower, and a natural continuation: the Voje valley with its hay meadows and waterfall. It's also one of the best heatwave outings in the country — the water and the beech shade keep the whole valley cool.
2026 entrance fee and access
The ticket booth sits just past the Devil's Bridge (Hudičev most) at the edge of Stara Fužina village. Posted summer 2026 fees:
- Adults: €4 (reduced shoulder-season fee in April-May and October)
- Children 7-14: €2, free under 7
- Free with the Julian Alps: Bohinj card — if you're staying in the valley your host often includes it, and it pays for itself on this entry alone
- Off season (November to March): free, the booth is unmanned
Bring cash: card payment at the booth isn't guaranteed. The fee is collected during the day in season; outside those hours nobody will stop you, but the money maintains the Triglav National Park trails.
Getting to Stara Fužina
- On foot from the lake: 20-25 minutes from Ribčev Laz on a flat path — the best option in summer
- By car: paid car parks in Stara Fužina, around €3/hour in high season (€0.50-1.50/h the rest of the year)
- By summer shuttle: local Promet Bohinj buses link Ribčev Laz and Stara Fužina from 13 June to 31 August 2026; same-day timetables on promet.bohinj.si, children under 14 ride free with an adult
Car-free altogether? Bohinjska Bistrica has train service — including the scenic Bohinj railway, 120 years old this year — then a local bus to the lake.
The walk: short loop or waterfall
Gorge loop only: about 1.5 hours. The trail follows the left rim of the canyon past the potholes, natural bridges and the famous Little Elephant rock (slonček), then returns along the other side. Gentle gradient, near-constant shade: doable with kids from age 4-5, but not with a stroller.
To the Voje waterfall: allow 3 to 3.5 hours round trip from Stara Fužina, roughly 12 km and 300 m of cumulative climb. Past the gorge, the trail opens onto the Voje valley, a hay-meadow alp framed by rock walls — one of the most peaceful landscapes in the park. At its far end, Mostnica waterfall (Slap Mostnice) drops about 21 metres, at full power in spring and after rain, shyer in late summer.
Where to eat: Koča na Vojah
Halfway to the waterfall, the Koča na Vojah mountain hut (690 m) serves simple, generous hut food — ričet (barley stew), štruklji dumplings, apple strudel — daily from June to September and at weekends in the shoulder season. It's the natural stop on the way back; the outdoor tables look over the Voje meadows.
Park rules (and two traps to avoid)
- No swimming in the gorge and its pools — this is Triglav National Park, and people get hurt here every summer ignoring it
- Dogs welcome but on a leash — full details in our guide to Slovenia with a dog
- Closed shoes: the polished rock is treacherous after rain — flip-flops end badly here
- Go early in July-August: most visitors arrive between 10 AM and 3 PM; before 9:30 you'll have the potholes to yourself
Combining it with the rest of Bohinj
Mostnica pairs naturally with a lake day: rowing in the morning, gorge in the afternoon. To pick your base, read our Bled vs Bohinj comparison and our guide to authentic places to stay around Lake Bohinj. And if waterfalls are your thing, Peričnik waterfall, a 40-minute drive away in the Vrata valley, is the only one in Slovenia you can walk behind.
Frequently asked questions
How much does Mostnica Gorge cost?
€4 per adult and €2 per child aged 7-14 in summer 2026, collected at the Devil's Bridge booth from June to late September (reduced fee in the shoulder season). Entry is free with the Julian Alps: Bohinj card and off season, from November to March.
How long is the Mostnica Gorge hike?
About 1.5 hours for the gorge loop from Stara Fužina. Allow 3 to 3.5 hours round trip, 12 km and 300 m of climb, to continue to Mostnica waterfall at the end of the Voje valley.
Can you swim in Mostnica Gorge?
No. Swimming is forbidden in the gorge and its pools: this is Triglav National Park, the rock is slippery and the water stays ice-cold even in August.
Mostnica or Vintgar — which one should I choose?
Vintgar is more spectacular with its boardwalks right above the water, but far more expensive (€15 on a timed slot) and much busier. Mostnica costs €4, needs no reservation and extends into a real hike to a 21 m waterfall. With kids or in peak season, I pick Mostnica every time.
Is Mostnica Gorge dog-friendly?
Yes, on a leash — the rule everywhere in Triglav National Park. The trail is wide and shaded, very pleasant for a dog, but the water is off-limits for them as it is for humans.
Going further
Our complete Lake Bohinj guide, the Tolmin Gorges vs Vintgar comparison and the 120-year-old Bohinj railway scenic train to plan the rest of your stay.
Patrick Faust
French expat in Slovenia since 2004. Founder of e-Slovénie, a Slovenia travel guide. Learn more →