Tianjin plans to build a geological park in Qilihai wetland in Ninghe County, Tianjin Municipal Bureau of Land Resources said.

The plan was approved by a panel of geology experts at a meeting held by the bureau on Wednesday.

Photo taken on Aug. 23, 2009 shows the scenery of bird island in Qilihai wetland in Ninghe County, north China's Tianjin Municipality.

After reviewing the application, experts unanimously agreed the geological ruins of the wetland qualify for a geological park, the bureau said.

The wetland, covering 95 square kilometers, is one of the most ancient coast wetlands in the world. It has the world’s largest and most widespread bank, which was formed 5,800-2,200 years ago and is evidence of the changes of ancient bays.

The wetland is also an important transfer site for birds migrating from Southeast Asia to Siberia, and there are almost 200 species of birds now living on the island.

By Guo Changdong