Since the mountainous location is totally on the japanese Portion of the peninsula, the key rivers have a tendency to flow westwards. Two exceptions tend to be the southward-flowing Nakdong River and Seomjin 파라곤 솔루션 River.
And so far as continental Southeast Asia goes, many of them are near sufficient to one another that you just only have to fly to at least one, and then you can use community transportation ways to stop by the rest.