The Sava Bohinjka emerges from Triglav National Park at an elevation of 525 metres, fed directly by the glacial melt of Slovenia's highest peaks. Its first twelve kilometres—from the outflow of Lake Bohinj to the confluence with the Sava Dolinka near Radovljica—carry a gradient steep enough to sustain Class II and Class III rapids through a corridor of Karst limestone and beech forest. The river was historically unnavigable for commerce; its velocity and boulder fields made it a barrier rather than a route, and locals relied on foot trails along the ridgeline instead. Recreational rafting arrived in the late 1980s, introduced by Alpine clubs in Kranjska Gora who saw the corridor's potential for guided descents. By the mid-1990s, the stretch between Brod and Radovljica had become one of Central Europe's most accessible white-water venues, with put-in points reachable by road and the entire run completable in two to three hours. Today, the Sava Bohinjka serves as a training ground for the Slovenian national kayak team and a testing venue for the International Canoe Federation. The river's flow is governed by snowmelt rather than dam release, so water levels peak in late May and early June, then taper through August. At high water, the rapids in the Žlan Gorge—particularly the sequence known as the "Three Sisters"—demand precise paddle coordination and timing. At lower autumn flows, the same stretch becomes a technical navigation exercise, requiring crews to read eddies and choose lines around exposed rock gardens. Sava Bohinjka river rafting tours operate from April through October, with most operators based in Bled or Bohinjska Bistrica offering morning and early-afternoon departures. The section between Brod and the Radovna confluence is the most frequently run; it threads beneath the Triglav massif's southern flank and passes the abandoned mill at Podkraj, now a landmark for paddlers marking the halfway point. The river's water temperature rarely exceeds 12°C, even in July, a consequence of its glacial source and the canopy shade provided by riparian forests. Wetsuits and neoprene booties are standard issue year-round. The Sava Bohinjka flows through a protected corridor within Triglav National Park for its first seven kilometres, meaning no permanent structures can be built along the banks. This regulation has preserved the river's visual character—no concrete embankments, no gauging stations, only footbridges at Stara Fužina and Bohinjska Bistrica. The rapids themselves bear names inherited from local dialect: "Pasji Zaliv" (Dog's Bay) for a sharp right-hand bend where currents pin rafts against the outer wall, and "Pekel" (Hell) for a drop that funnels the entire river through a two-metre gap. These features remain consistent year to year, though individual boulders shift during spring floods. For paddlers, the Sava Bohinjka offers a rare combination: technical challenge within a short distance, alpine scenery without the logistical weight of a multi-day expedition, and water cold enough to demand respect but forgiving enough for intermediate crews.