[Jul. 7, 2019] Trekking at Mt. Seolak for sub-alpine vegetation watching
[Jan. 21, 2017] Trekking at snow-covered Mt. Halla
[Sep. 6–10, 2012] Joint field research on desertified lands among China, Korea, and Japan in Hulunbuir, Inner Mongolia, China
[Mar. 13, 2010] Landscapes seeing near DMZ (Korean Demilitarized Zone) area
[Aug. 8, 2009] Trekking at Mt. Wolchul
[Jan. 1, 2009] Trekking at snow-covered Mt. Sobaeck for watching new-year sunrise