Chang Cave, stalactite or limestone cave in karst rock formations, Vang Vieng, Vientiane, Laos, Indochina, Asia

asia asian cave cave caves chang east formations illuminated illumination illuminations in indochina indoor indoors inside interior karst landscape landscapes lao laos laotian lighting limestone lit nature nobody or path paths pathway pathways photo rock rocks rocky south south east stalactite stone topographies topography tourism touristic touristical touristically touristy trail trails up vang vieng vientiane view views way ways