Coolest Mountain Lakes for Wild Swimming in the Alps

The Alps stretch across several countries, offering endless lakes to explore. Whether you prefer icy glacial waters or sun-warmed mountain pools, these lakes deliver unforgettable wild swimming experiences: Lake Oeschinen (Switzerland): Near Kandersteg, this UNESCO World Heritage-listed lake is framed by sheer cliffs and alpine meadows. While the water remains chilly year-round, the stunning setting and easy access make it a must-visit for swimmers seeking dramatic scenery. Lago di Braies (Italy): Set in the Dolomites, Lago di Braies offers turquoise waters perfect for a summer swim. Arrive early to avoid crowds and enjoy a peaceful dip surrounded by iconic peaks. Walchensee (Germany): One of Germany’s deepest and clearest lakes, Walchensee is popular among wild swimmers for its clean, blue waters and forested shores. Its large size means you can easily find quiet spots even in high season. Lake Anterselva (Italy): Tucked away in South Tyrol, this serene alpine lake offers cool, clear waters ideal for a refreshing swim after a hike. The quiet surroundings and pristine nature make it a hidden gem. Lac de Montriond (France): Located near Morzine, this smaller lake warms up nicely in summer and offers gentle, accessible swimming surrounded by green peaks. It’s family-friendly and perfect for relaxed wild swimming days. Klöntalersee (Switzerland): Near Glarus, this lake’s dramatic setting and mirror-like surface make it a photographer’s dream and a refreshing swimming destination. It's less crowded than other Swiss lakes, offering a true wild experience. Plansee (Austria): Close to the German border, Plansee’s crystal waters and scenic mountains invite swimmers, kayakers, and nature lovers. Its remote feel makes it ideal for peaceful summer escapes. Tips for Wild Swimming in the Alps: - Always check local regulations — some lakes restrict swimming in certain zones for environmental protection. - Water temperatures can be cold even in summer. Acclimatize slowly and avoid long swims if you’re not used to cold water. - Enter slowly, never dive into unknown waters, and watch for sharp rocks near shores. - Bring water shoes, a towel, sun protection, and a dry bag for your gear. - Respect nature: Leave no trace and stick to marked paths to protect fragile alpine environments. Best Time to Swim: July and August offer the warmest water temperatures, but many alpine lakes stay cool year-round. Mid-morning or late afternoon swims avoid the harshest sun and busiest periods. Logistics and Access: Many alpine lakes are reachable by a combination of train, bus, and short hikes. Renting a bike can also open up access to more remote spots. Booking Outdoor Adventures: Platforms like Crion.org make it easy to combine wild swimming with other outdoor activities like hiking, canyoning, or trail running — turning your alpine escape into a full multi-sport experience. Exploring the coolest mountain lakes for wild swimming in the Alps promises stunning landscapes, refreshing adventures, and memories that last long after you dry off.