South Koreans led by Park Young - Bae tried to make a winter ascent of the southwest face of Everest .
South Koreans led by Park Young - Bae only reached a high point of 7800 meters on January 10 , 1989 .
South Koreans led by Park Young - Bae tried to make a winter ascent of the southwest face of Everest but only reached a high point of 7800 meters on January 10 , 1989 .