Schwarzlsee, Lake in Styria, Austria

Schwarzlsee is a lake in Styria, Austria, near the city of Graz. It has a sandy beach on its northern shore and clear water that reflects the sky, with grassy areas and trees along the banks.

The lake was formed in the 1970s from former gravel pits that filled with water. It became a recreational area and has since hosted events and sports activities.

The northern shore is a popular spot for swimming and sunbathing, where locals gather in summer. The name comes from the dark color of the water, which appears almost black in certain light.

The lake is easy to reach by car or public transport from Graz, with parking available near the main beach. Visitors can walk around parts of the shore, but some areas are private or used for camping, so check signs before exploring.

The water is unusually dark because of the minerals from the old gravel pits, which also give it a high clarity. This makes it a favorite spot for divers who practice in the deep sections.