Lake Bohinj

Where it sits. Lake Bohinj is the largest permanent lake in Slovenia and lies at 526 metres inside Triglav National Park, twenty-six kilometres south-west of Bled and one valley deeper into the Julian Alps. It is 4.35 kilometres long, up to 1.25 kilometres wide, covers roughly 3.2 square kilometres and reaches 45 metres at its deepest. The basin was carved by the Bohinj glacier and finished by tectonic movement, and the mountains crowd it much more closely than they do at Bled: the Pršivec and Vogar slopes drop straight to the northern shore, while the Vogel ridge rises 1,000 metres above the southern side. The result is a lake with almost no built shoreline — two small settlements, Ribčev Laz at the eastern outflow and Ukanc at the western head, and forest and reed between them.

Water in and water out. The lake is fed principally by the Savica, which arrives at Ukanc after emerging from the mountain at the Savica waterfall, a two-step fall of 78 metres whose upper drop bursts out of a karst spring in an A-shaped cleft; 553 steps climb to the viewing platform from the road head. At the eastern end the water leaves as the Sava Bohinjka, one of the two headwaters of the Sava, under a stone bridge beside the church of St John the Baptist. That church is the reason art historians come to Bohinj: a Romanesque nave of about 1300 and a Gothic presbytery of the 1440s, both covered inside with fifteenth-century frescoes, including a rare cycle on the life and beheading of the Baptist. Three kilometres up the valley, at Ukanc, a bronze Zlatorog set up in 1925 commemorates the white chamois with golden horns of the local legend, whose blood was said to grow the flowers that heal.

A mountaineering and engineering valley. Triglav, at 2,864 metres the highest mountain in Slovenia and the emblem on the national flag, was first climbed on 26 August 1778 by four men from this valley — Luka Korošec, Matevž Kos, Štefan Rožič and Lovrenc Willomitzer — an ascent that predates most of the classic Alpine firsts and is treated in Slovenia as a founding national event. The valley's other great work is the Bohinj Railway, opened in 1906 to link Vienna's rail network with the port of Trieste: it runs through the 6,327-metre Bohinj Tunnel under the Julian Alps to Podbrdo and crosses the Soča at Solkan on a stone arch of 85 metres, the longest stone railway arch ever built. The line still carries passengers and a car-shuttle train, and the ride from Bohinjska Bistrica to Most na Soči remains one of the most spectacular short rail journeys in Europe.

On screen. Bohinj's screen record is domestic rather than international, and that is largely deliberate. The lake and its surroundings sit inside a national park with restrictions on vehicles, drones and commercial filming, so the productions that come to the Julian Alps for wilderness tend to work on the Soča side, as the crew of The Chronicles of Narnia: Prince Caspian did in 2007. What Bohinj supplies instead is the standing landscape of Slovenian television and cinema — the mountain-village setting, the frescoed church, the empty shoreline — and the reference imagery for the country's own conservation and tourism films. Visitors who arrive expecting a film location find something better: a lake that has been kept looking as it did before anyone thought of filming it.

What you actually see today. A path circles the lake in about 12 kilometres and three to four hours, easy along the sunny southern shore and rougher, rootier and shaded on the northern side under Pršivec. Swimming is allowed and the water reaches about 22 degrees in late July; paddleboards and kayaks are rented at Ribčev Laz and Ukanc under park rules. The Vogel cable car, running since 1964, lifts from Ukanc to 1,535 metres in four minutes and opens a small ski area in winter and a balcony over the whole lake in summer, with the Triglav north face visible across the valley. Serious walkers use Bohinj as the southern approach to Triglav via the Seven Lakes Valley, a two- to three-day traverse through a chain of high tarns with huts along the way.

Getting there and timing. Bohinjska Bistrica, the valley town, is 30 kilometres from Bled by road and served by both bus and the Bohinj railway; local buses continue to Ribčev Laz, Ukanc and the Savica road head. Parking at the lake is paid and limited, and in July and August the shore fills by mid-morning, so an early start or the bus is the sensible approach. The high traverses clear of snow between late June and early July; October gives beech colour on the lower slopes and near-empty paths, and the lake freezes only partially, in the hardest winters.