Syri i Kalter, known as the 'Blue Eye', is a water spring and natural phenomenon located in the Delvine District of Albania. The clear blue water of the spring contrasts with the dark surroundings, creating a stunning view. This spot is a favorite among locals and tourists for its serene ambiance and refreshing water, which remains a constant 10 degrees Celsius all year round. Its depth of over 50 meters makes it incredibly intriguing, yet slightly intimidating to visitors. Swimming is not recommended due to the strong currents, but nearby, there are spots perfect for picnics and relaxation.