Goals for today was to look at Gwangjang market and Lotte Tower.
I didn't get to see my aunt today because of severe back and leg aching after all the walking. Maybe I need to limit my daily walking to about 15000 steps. Another issue is that the subways are so crowded that often I must stand in place for long periods which also is a pain. The travails of an older human trying to keep up with younger people.