The Twelve Dian Banyan Trees(十二佃神榕) are located on Alley 43, Section 4, Gongxue Road, in Tainan's Annan District, by the side of Tsengwen River. Because the Tsengwen River was once called the "Green Snake(青暝蛇)", and its frequently changing watercourse often caused flooding, a century ago the local residents planted a banyan tree to symbolize quelling the floods. They certainly didn't expect this tree to become a forest. The area the Twelve Dian Banyan Trees cover is around one square kilometer, forming a magnificent miniature forest. With their characteristically twisted roots, the trees in the park provide shade even when the sun is high, making it the perfect place for photographers to achieve good lighting levels.