The Angon gorge cuts a vertical seam through the eastern flank of the Tournette massif, dropping 950 metres from alpine pasture to the tourquoise shoreline of Lake Annecy in less than three kilometres. Fed by snowmelt and underground springs, the canyon carved its path through Jurassic limestone over millennia, leaving a narrow defile of polished rock, hanging gardens of fern and saxifrage, and a chain of plunge pools connected by waterfalls that range from waist-high slides to thirty-metre rappels. The hamlet of Angon, a cluster of stone farmhouses and a Romanesque chapel, clings to the lower slopes above Talloires-Montmin, its name derived from the pre-Celtic root *ang*, meaning narrow or constricted. Canyoning Angon Decouverte emerged in the 1990s as French alpine guides adapted mountaineering rope techniques to descending watercourses, transforming the gorge into one of Haute-Savoie's most accessible aquatic corridors. The discovery-level route begins at 620 metres elevation, where the stream enters a shaded ravine below the Cascade d'Angon, a fifty-metre waterfall visible from the lake. Participants descend through a sequence of natural obstacles—rock slides worn smooth by centuries of flow, boulder chokes that require chimneying or swimming, and rappel stations anchored to embedded steel rings. The canyon's limestone walls, banded in ochre and grey, rise as high as forty metres in the deepest section, blocking midday sun and keeping water temperatures between twelve and sixteen degrees Celsius even in August. The route's technical character remains constant across seasons, though spring runoff can elevate flow rates and require stronger swimming ability. Each descent takes three to four hours, including safety briefings and equipment fitting at the trailhead. Guides lead groups of six to eight through the progression, pausing at wider pools to demonstrate jump techniques or adjust harness configurations. The final rappel drops eighteen metres beside a curtain of whitewater into the lower basin, where the stream moderates before reaching the lake. Wetsuit insulation, helmets, and harnesses are standard issue; no prior canyoning experience is required, though comfort in moving water and a baseline level of physical fitness are necessary. The Angon canyon sits within a network of similar gorges—Montmin, Ternèze, Pont du Diable—that riddle the Bauges and Bornes ranges, each graded by vertical drop, water volume, and technical demand. Canyoning Angon Decouverte tours operate daily from late May through September, weather and water-level permitting, with morning departures preferred to avoid afternoon thermal heating in the exposed approach trail. The activity bridges the gap between hiking and climbing, offering a controlled introduction to vertical aquatic terrain without requiring rope-handling skill or previous mountain experience.