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The emerald spring pool of Zelenci among the wetlands at the source of the Sava Dolinka river near Rateče

Nature Reserve & Springs

Zelenci Nature Reserve and the Source of the Sava Dolinka

Kranjska Gora · Alpine Slovenia

QUICK INFORMATION

CATEGORY
Nature Reserve & Springs
COUNTRY
Slovenia
REGION
Kranjska Gora · Alpine Slovenia
DURATION
1–2 days

ABOUT THIS ATTRACTION

Zelenci is where the longest river in Slovenia is born. The Sava Dolinka rises here as a cluster of powerful karst springs at the head of the valley, surfacing as emerald-green pools in a wetland bowl below the Rateče plain, before gathering into the young river that runs the length of the Upper Sava Valley past Kranjska Gora and on toward the Danube basin. The reserve is small and deliberately quiet: a short boardwalk and observation area lead among the spring lakes and the Drni marsh, with the waterfowl, the wetland plants and the colour of the springs as the whole of the show. It is the gentlest sight in the destination — flat, short and strollable in under an hour — and the most fragile, protected as a nature reserve and within a Natura 2000 area, which is why the visit is a boardwalk and not a beach: no swimming, no off-path wandering, and the reserve’s rules are the itinerary.

HISTORY & BACKGROUND

The story behind it

The springs are a karst story. The water of the surrounding mountains — including the bed of the Sava Dolinka above the springs, which sinks underground near Rateče and re-emerges here — surfaces at Zelenci at a steady temperature that keeps parts of the pools ice-free even in winter, which is what allows the wetland’s particular plants and animals to live here at all. The name is the colour: zelenci means “the green ones” in Slovenian, and the emerald of the main spring pool is the reserve’s signature. The area was protected as a nature reserve in recognition of its wetland habitats, and the Drni marsh beside the springs extends the protected landscape; the whole site sits within a Natura 2000 area, the European network of protected habitats. The boardwalk and observation area were built so the springs could be visited without being walked on — the reserve’s modern history is the slow conversion of a fragile wetland into a place that can be seen without being damaged.

WHAT TO SEE

What to see here

01

The main spring pool — the emerald eye of the reserve, where the Sava Dolinka surfaces from underground, ice-free in parts even in winter.

02

The boardwalk and observation area — the short raised walk among the spring lakes and marsh, built so the wetland can be seen without being walked on.

03

The Drni marsh — the protected wetland beside the springs, with its reeds, pools and birdlife.

04

The headwaters of the Sava Dolinka — the young river gathering from the springs and beginning its journey down the valley.

05

The Natura 2000 landscape — the plants, birds and habitats the European protection exists for, best seen slowly and quietly.

WHY IT MATTERS

Why it matters

Zelenci is the hydrological beginning of the whole valley: the Sava Dolinka, the river that names the region and runs past the village, is born here in a setting with no equivalent elsewhere in Slovenia — a spring wetland of national-rarity quality at the foot of the Julian Alps. It is also the destination’s clearest lesson in responsible visiting: the reserve is small, fragile and protected at two levels, and the boardwalk is the entire permitted route. The visitor who walks it slowly — quietly, in the early or late hours — sees the springs at their best; the visitor who treats it as a swimming hole or a shortcut sees nothing but the rules.

PRACTICAL INFORMATION

Before you go

Access
Reached from the Rateče side at the western end of the valley — a short drive or cycle from Kranjska Gora, with a small parking area and the boardwalk from there. The reserve is open at all hours and free; the boardwalk is the permitted route.
Walking
Flat, short and on a raised boardwalk — the easiest walk in the destination, though the surface can be damp or icy in the cold months. Allow anything from twenty minutes to an unhurried hour.
Rules
This is a nature reserve and a Natura 2000 area: stay on the boardwalk and the marked paths, no swimming or paddling in the springs, no picking or collecting, keep dogs on a leash and leave no waste. The reserve’s fragility is the reason it survives.
Seasons
The springs hold a steady temperature, so the main pool keeps its colour and parts stay ice-free even in winter — a genuinely year-round sight, with the birdlife at its best in the migration and nesting seasons and the colour strongest in the low light.
Pairing
Combine with Rateče village and the D-2 cycling trail, which runs close to the reserve; the springs are the natural western bookend of a valley day that begins at Lake Jasna.

MAP & LOCATION

Zelenci Nature Reserve and the Source of the Sava Dolinka

Zelenci Nature Reserve and the Source of the Sava Dolinka, Kranjska Gora, Alpine Slovenia, Slovenia

FOOD & DRINK

Where to eat nearby

01

The restaurants and cafés of the Kranjska Gora centre — the busiest tables of the valley, concentrated around the resort core and the pedestrian stretch of the village

02

The mountain huts of the surrounding valleys and the Vršič road — homemade mountain food in the season, each hut with its own schedule; check current opening arrangements directly

03

The traditional fare of Upper Carniola — the dumplings, stews, sausages and buckwheat dishes of the region, and the alpine dairy tradition of the high pastures

04

The smaller settlements — Podkoren, Rateče, Gozd Martuljek and Mojstrana — quieter tables, fewer choices and a slower pace than the resort centre

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HOTELS & STAYS

Where to stay nearby

01

Kranjska Gora centre — the resort core, walkable to the shops, restaurants and the trailheads of the local slopes and paths

02

Podkoren and Rateče — the quieter villages at the western end, closer to Planica, Zelenci and the Nordic world, with a slower rhythm than the centre

03

Gozd Martuljek — the calm village below the Špik group, the natural base for the Martuljek waterfalls and the northern-side paths

04

Mojstrana and Dovje — the eastern gateway villages, closest to the Vrata valley, the Alpine Museum and the D-2 trail toward the valley

05

The mountain huts — the huts of the surrounding valleys and the high routes, an accommodation category of their own with seasonal schedules and simple conditions; check current arrangements directly

06

Camping — the valley’s campsites as an accommodation category, from the resort-adjacent sites to the quieter ones near the villages; the individual sites are covered by the dedicated campsite registry

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