Tourists covered with mud pose for a selfie during the 21th Boryeong Mud Festival at Daecheon beach in Boryeong on July 14, 2018. - The annual festival, which runs from July 13 to 22, aims to encourage the use of mud for cosmetic skin-care and to promote tourism in the region. (Photo by Jung Yeon-je / AFP) (Photo credit should read JUNG YEON-JE/AFP via Getty Images)
