Dive-site story
Located in the Swiss canton of Ticino where alpine waterways carve through the mountains, Tegna offers a distinctive river diving experience focused on dramatic geology. Divers submerge into deep basins sculpted from solid granite, where centuries of glacial melt and river flow have polished the rock into smooth, sweeping curves, deep grooves, and rounded potholes. Visibility can be exceptional when river discharge is low, allowing bright sunlight to illuminate the pale rock and translucent emerald water.
Smoothly sculpted granite walls, rock bowls, and underwater canyon formations
Exceptional freshwater clarity during stable, low-flow conditions
Striking light shafts filtering into deep river pools
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Summer and early autumn bring warmer temperatures and typically lower water levels, though divers must always verify local rainfall and river flow beforehand.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brown TroutSalmo trutta | Common | ||||||||||||
| European BullheadCottus gobio | Common | ||||||||||||
| BurbotLota lota | Rare |
Marine forecast
