On the first day, my ISA group and I took a bus near the top of the mountain to get to Namsan Seoul Tower and walked up what is possibly the steepest slope ever to get to the top. Aside from its main attraction -the observation deck- there were restaurants, LED video tunnels, sloped couple benches, and tree structures made out of love locks that couples had placed there, like the bridges in Paris. The view was amazing, and I want to go back to hike the trail all the way up.
