Grüner See

Nestled in the heart of Austria's Hochschwab Mountains lies Grüner See, a breathtaking lake renowned for its crystal-clear waters and the surreal phenomenon that transforms it annually. Known as the "Green Lake" for its emerald hue, Grüner See is a natural marvel that has captivated the imagination of nature enthusiasts and divers alike.

The lake is fed by the snowmelt from the surrounding karst mountains, and its depth varies with the seasons. In winter, Grüner See is a shallow body of water, often used as a park with benches and walking paths meandering through the surrounding forest. However, come spring, the melting snow causes the lake to swell, submerging the park under up to 12 meters of pristine water. This seasonal transformation creates an underwater wonderland, where submerged trees, footpaths, and even benches become an ethereal backdrop for divers.

Grüner See's unique topography has made it a popular spot for scuba diving, offering a rare opportunity to explore a submerged landscape. The visibility in the lake is exceptional, often exceeding 20 meters, allowing for an unobstructed view of the underwater spectacle. The water's temperature, however, remains quite low, hovering around 4-8 degrees Celsius, even in the height of summer, making wetsuits or drysuits a necessity for any underwater adventure.

Environmental concerns and the desire to preserve the delicate ecosystem led to a ban on all water sports, including diving, in 2016. This measure aims to protect the lake's flora and fauna, ensuring that future generations can continue to enjoy the natural beauty of Grüner See.

Visitors to the area can still marvel at the lake's serene beauty from its banks. The site offers a tranquil retreat for those looking to escape the hustle and bustle of daily life and immerse themselves in the tranquil embrace of nature. The changing seasons offer varying perspectives of the lake, from a lush, green expanse in the summer to a mystical, submerged landscape in the spring.