Introduction to Great Wall Lake: Great Wall Lake (Daguan Reservoir), with a total storage capacity of 27.38 million cubic meters, green ridges and mirrors, and beautiful scenery. The section of the Great Wall from Dianjiangtai to Fenghuangling (the Inner Great Wall) winds along the lakeshore and is spectacular. The royal tombs, Caoshen Pavilion, Temple of Worship and other ruins have all been submerged into the lake.