Diving Afritzer See
Site Overview
Afritzer See is a mountain lake dive site in Carinthia, Austria, set among the country’s varied freshwater landscapes. Afritzer See is a high-mountain Carinthian lake, clear and cold, set in a dramatic alpine basin. Trout thrive in the oxygen-rich water, and the steep slopes give a sense of vertical space. It is colder and more remote than the warm lowland lakes, so a drysuit and altitude awareness help. The clarity is good for a mountain lake, and the setting is spectacular and quiet. It suits confident divers who enjoy cold, clear, uncrowded water. It is a high-quality, low-key alpine dive away from the tourist hubs. Conditions are typical of Austrian inland water: visibility generally runs from 8 to 18 metres, the current is low and the water temperature ranges between 4 and 20 degrees Celsius depending on season and depth. The marine life is freshwater and centred on lake trout (brown trout), arctic char, grayling, with the full community described below for those planning a dive. Because of its intermediate rating and the need for Advanced Open Water certification, Afritzer See is best approached with the right thermal protection and, where relevant, altitude or overhead training. It is a representative example of why Austrian lake diving, with its cold clarity, submerged forests and wrecks, attracts divers who want something different from tropical reefs.
Dive Briefing
"Entry is made from the shore near Afritz, and divers should check in with a local centre before entering the water. Afritzer See is a high-mountain Carinthian lake, clear and cold, set in a dramatic alpine basin. Trout thrive in the oxygen-rich water, and the steep slopes give a sense of vertical space. It is colder and more remote than the warm lowland lakes, so a drysuit and altitude awareness help. The clarity is good for a mountain lake, and the setting is spectacular and quiet. Plan your profile around a maximum depth of 28 m and an average of 12 m, keeping a close eye on gas and, in deeper sections, on the cold thermocline. Buoyancy control matters: silty or vegetated bottoms and submerged structures are easily disturbed, and cold, altitude water with heat-loss risk is a real consideration here. A safe ascent with a surface marker buoy and a clear exit plan completes the dive, with emergency cover routed through Klagenfurt State Hospital."
Signature Marine Life
Lake Trout (Brown Trout)
Salmo trutta
Best: May, June, July
Arctic Char
Salvelinus alpinus
Best: May, June, July
Grayling
Thymallus thymallus
Best: May, June, September
Noble Crayfish
Astacus astacus
Best: May, June, July
European Minnow
Phoxinus phoxinus
Best: May, June, July
European Perch
Perca fluviatilis
Best: May, June, July
Safety & Hazards
- Cold, altitude water with heat-loss risk
- Steep slopes and depth
- Remote location with slow EMS
- Limited access points
- Slippery rocky entries
- Weather closing the road
Traveler Notes
Who is this for?
Afritzer See suits intermediate divers holding at least an Advanced Open Water certification, and it is a strong choice for those who enjoy cold-water, freshwater environments. Photographers, training groups and divers chasing wrecks, walls or macro life will all find something here, provided they respect the temperature and the limits of an inland lake. It is less suitable for absolute novices unless booked through a centre running a supervised course, and overhead or very deep sections should only be attempted with the correct specialist training.
For Non-Divers
Afritz village; The Carinthian Nockberge; Alpine hiking; Nearby Millstatt
Quick Stats
Dive Logistics
- Wörthersee Divers
- Millstätter See Diving
- Weissensee Ice Dive
Photography Info
Best for: wide_angle, macro
Nearby Stay
Hotel Carinthia
Velden • 28km away
Seehotel Hubertushof
Millstatt • 28km away