09:00- 16:00。 According to Di Bao, Dalian Black Rock Reef Park is open free of charge all year round, and its business hours are 09: 00- 16: 00 every day, including Saturday, Sunday and legal holidays. Black Rock Reef is the closest geological attraction to downtown Dalian, where the coastline is tortuous and changeable. The karst landforms and black rocks formed about a billion years ago are all over the headlands. When the tide is high, it is hidden or now on the water surface, which is mysterious and unpredictable; Standing on the beach at low tide is spectacular.