On September 2, tourists visited the Yueyan Scenic Area in Daoxian County. Characterized by karst topography, a sinkhole in the area produces a unique Tyndall effect when illuminated by sunlight. Sunbeams penetrating the cave create fantastical light and shadow patterns, making the place a favorite destination for photography enthusiasts. (Photo/Jiang Keqing)

On September 2, tourists visited the Yueyan Scenic Area in Daoxian County. Characterized by karst topography, a sinkhole in the area produces a unique Tyndall effect when illuminated by sunlight. Sunbeams penetrating the cave create fantastical light and shadow patterns, making the place a favorite destination for photography enthusiasts. (Photo/Jiang Keqing)

On September 2, tourists visited the Yueyan Scenic Area in Daoxian County. Characterized by karst topography, a sinkhole in the area produces a unique Tyndall effect when illuminated by sunlight. Sunbeams penetrating the cave create fantastical light and shadow patterns, making the place a favorite destination for photography enthusiasts. (Photo/Jiang Keqing)

On September 2, tourists visited the Yueyan Scenic Area in Daoxian County. Characterized by karst topography, a sinkhole in the area produces a unique Tyndall effect when illuminated by sunlight. Sunbeams penetrating the cave create fantastical light and shadow patterns, making the place a favorite destination for photography enthusiasts. (Photo/Jiang Keqing)

This article is from the Hunan Provincial Government www.enghunan.gov.cn.

责编：王柯沣

一审：王柯沣

二审：秦慧英

三审：张权

来源：湖南省政府门户网