Late September. The hairy crab in Gucheng Lake is one of the well-known aquatic products in China, and it is known as the "crown of crabs". The listing time starts from the end of September every year. The annual Gucheng Lake Crab Festival is also an important agricultural festival, which is held by Gucheng Lake and lasts until 1 1. During the listing of crabs, you can taste the fresh and delicious Gucheng Lake hairy crabs.