Atlas › Slovenia - Julian Alps (Soča)
Kozjak
not verifiedpermit unconfirmed 2026-08-20
Ungraded
High flood risk
Kobarid, Soča Valley
Aggressive 4C2 limestone descent in the upper Kozjak drainage, finishing above the famous waterfall amphitheater near Kobarid.
Materially harder than Sušec across the valley. The v4a5 II grade flags it as a step up in commitment, primarily because of sustained swift water rather than vertical exposure. The Kozjak Slap itself (the 15 m waterfall in the cathedral pool downstream) is a walking destination on its own and not part of the canyoning descent.
Logistics
| Manager | Triglav National Park / Občina Kobarid |
|---|---|
| Permit | Triglav National Park's canyoning regime names only three canyons, Fratarica, Predelica and Jerečica, where consent from JZ TNP, registration through the park application and a per person infrastructure fee are all mandatory. This canyon is not among them. TNP separately requires that sport and recreational activities on watercourses in its third conservation zone take place in designated places and with the consent of the park manager, so whether anything applies here turns on whether the descent actually lies inside the park boundary, which this record has not established. Confirm with JZ TNP or Občina Kobarid before treating the descent as unrestricted. |
| Distance | 1.4 |
| Elevation | ~213 ft loss in descent |
| Time | 2-3 hr (45 min approach, 2 hr descent, 5 min exit) |
| Technical | Limestone tributary of the Soča near Kobarid, ending above the famous Kozjak waterfall amphitheater. Ropewiki rates 4C2 II (v4a5 II), making it materially harder and wetter than nearby Sušec. Longest rappel about 66 ft. Significant swift-water hazard; aquatic grade 5 of 7. Wetsuit mandatory year round, Soča-system water runs cold. |
| Season | Summer (Jun-Sep) primary; viable in shoulder seasons with cold-water gear. |
| Flood risk | Moderate to high. Tight drainage off the surrounding ridges; flow spikes fast on rain. The base Kozjak waterfall amphitheater is the tourist destination, so flow gauges and conditions are well watched locally. |
| Vehicle access | 2WD, paved to Kobarid trailhead |
| Crowd | The walking trail to the Kozjak waterfall is one of the most popular day hikes in the Soča Valley. The canyoning descent above is less trafficked but sees guided parties in season. |
| Coordinates | 46.2614, 13.5918 |