Photographer Balon Greyjoy Description An entrance to a tunnel at the Cu Chu Tunnels in Vietnam. Date 25 September 2019, 10:15 Source Own work Permission
described at URL: https://www.flickr.com/photos/jlascar/4607995074/ operator: Flickr URL: https://live.staticflickr.com/4068/4607995074_a5ff278941_o.jpg