Totally wrong. Transit != rail. There are amazing trailheads that are easily accessible from downtown Seoul by a reasonably short busride (e.g. Bukhansan nation

Totally wrong. Transit != rail. There are amazing trailheads that are easily accessible from downtown Seoul by a reasonably short busride (e.g. Bukhansan national park). The fact that buses run to these trailheads does absolutely nothing to diminish them. In fact, they enhance them, because they make it possible to through-hike! Eat your heart out, personal automobile.