NAHF conducted a tour of Ulleungdo and Dokdo in two sessions from October 29 to November 1 and November 5 to 8 for 50 teachers of 'Dokdo School of KOREA' in 2020. This visit was accompanied by professional medical personnel as well as thorough compliance with the Covid-19 preventive guidelines and using masks and sanitizers. In addition, SNS for participants was operated to enable real-time communication, and the contents of Dokdo club activities(non-face-to-face educational activities) were shared. This visit was an opportunity to raise awareness of Dokdo by teachers and to expand their expertise to spread understanding and interest in Dokdo.