Salzkammergut Lakes

Local Diving Risk Controls

• Select each entry by legal access, weather, qualifications, actual depth profile and a local briefing. Shore access does not imply a safe dive below a cliff.
• Use a buddy, conservative gas and no-decompression management, suitable cold-water regulator and thermal protection, buoyancy skill, redundant lighting for darker areas, and a surface/exit plan. Set equipment and computers appropriately for freshwater and altitude when applicable.
• ARGE warns that deep lake temperatures can approach 4°C; surface summer warmth is not a guide to conditions at depth. Do not expect any fixed visibility, water temperature or fish encounter.
• Verify Wolfgangsee fish-spawning boundaries and narrow exceptions; keep out of Mondsee archaeological no-dive areas, Attersee protected heritage and any signed harbor/swimming restriction.
• For apnea: no solo breath-hold dives, no hyperventilation, no unsupervised max-depth attempts, and a trained safety partner able to perform rescue. A recreational snorkel buddy is not automatically trained to supervise deep freediving.
• Respect vessel traffic and diving surface signaling. Watch local storm alarms, low-water hazards, sharp stones, slippery access points and boat timetable changes.
• For suspected decompression sickness or gas embolism, end diving, call ambulance 144 or 112, report Tauchunfall (diving accident), and cooperate with first responders. Do not fly or ascend mountain roads after a problematic dive.

Dial 144 for Austrian ambulance dispatch or 112 for the European emergency number. Explain the dive profile, breathing gas, timing, symptoms, location and the phrase Tauchunfall. Trained first responders should supply high-concentration oxygen if equipment is available, monitor breathing and consciousness, and avoid hypothermia while following dispatch instructions. Ambulance services coordinate onward evaluation and any recompression care; do not assume a nearby local hospital has an operational hyperbaric chamber. A center may instead be reached through dispatcher-organized transfer to a regional diving-medicine facility. Save offline maps and a working phone; shore sites may be separated by road and weather conditions. DAN advises at least 12 hours before flights after a single no-decompression dive and 18 hours after multiple dives or multiple days, with longer intervals following obligatory decompression and extra attention to Alpine-altitude ascents. The interval is general guidance, not assurance of safety after symptoms or unusual profiles.

• Fish and spawning: Follow Wolfgangsee restricted zones, including the 15 September to 15 April protected period and only the permitted cardholder exceptions at named short sections. Do not disturb shoals or spawning substrates.
• Underwater archaeology: Mondsee tourism identifies absolute diving bans at registered prehistoric pile-dwelling sites. Attersee UNESCO-related waters have mapped anchoring protection; do not anchor, touch, excavate, collect or damage heritage remains.
• Shore habitats: Avoid reed beds, submerged plants, fragile nearshore sediment, breeding areas and boat-protected channels. Maintain neutral buoyancy on walls and around submerged trees.
• Water quality: Use official Upper Austria and Salzburg bathing-water updates for swimmers. Transparent water does not establish safe conditions, and river inflow or storm runoff can reduce visibility.
• Waste: Never leave fishing line, weight belts, plastics or old equipment at entry points. Arrange shoreline cleanups and any underwater salvage only with the relevant authority rather than disturbing protected archaeology.