A little girl in red runs gleefully at a wooden aisle across the cole flower sea. [Photo/WeChat account of Optics Valley of China]

April boasts the best spring scenery of the year. To the south of the ecological corridor of the East Lake High-tech Development Zone (also known as Optics Valley of China, or OVC), 25 hectares of cole flowers are currently in full bloom now, creating bright yellow terraced fields surrounded by city landscapes.

An aerial view of terraced cole flower fields south of Longquan Mountain and north of Jiufeng Mountain. [Photo/WeChat account of Optics Valley of China]

Parents and their kids fly kites over terraced fields. [Photo/WeChat account of Optics Valley of China]

Three ladies wearing hanfu – traditional Chinese apparel dating from ancient times – hold oil paper umbrellas as they leisurely stroll through flowers dancing in the wind. [Photo/WeChat account of Optics Valley of China]