About This Swimming Area
Lake Thun, nestled in the Bernese Oberland between Thun and Interlaken, boasts calm, emerald waters ideal for family swims at Gwatt Beach, a designated strandbad with grassy areas, piers, and shallow entries. Accessible by bus from Thun station (line 1), this spot offers panoramic views of Niesen and Stockhorn peaks. Water temps reach 20-24°C (68-75°F) in July-August. Swim along the 300m buoyed zone or paddle to nearby islands. Picnic facilities and showers make it beginner-friendly. Respect signage; wild swimming beyond buoys risks boat traffic from Thun steamer routes. Use the MeteoSwiss app for wind and water level forecasts.
Safety Considerations
Lakes are safer than rivers, yet sudden drop-offs near Gwatt's underwater shelves claim victims annually. Swiss drowning stats show 10-15 lake incidents yearly, often from overestimation of stamina or boat collisions. Swim within marked areas; shipping lanes host ferries and sailboats. Cold thermoclines at 10m depth trigger cramps. Lifeguards patrol weekends; heed red flags for storms. No alcohol; supervise kids closely. For open-water swims, acclimate to chill and watch for water skiers. Hypothermia risk persists despite warmer surface temps. Follow REI's open-water protocols: sight your exit point and swim against prevailing winds outbound.
Essential Gear
Bright swim cap and NRS tow float for visibility, aqua shoes for pebbly bottoms, UV-protective swim shirt, waterproof phone pouch with offline maps, and child flotation vests if needed. Snorkel gear reveals underwater wonders safely.
Emergency Tips
Wave arms or blow whistle for lifeguard attention. Call 144 stating 'Gwatt Strandbad, Lake Thun'. If cramping, float and breathe; buddy tows using buoy line. REGA heli for remote rescues.
With these practices, Lake Thun swims become safe family adventures amid stunning Alps scenery.