I will be going to nami island and had done some searching. I'll be staying near myeongdong area and have found out that I can take subway to Seoul station and transfer to yongsan station to take the ITX train to gapyeong station and then take taxi to nami ferry jetty? Is this the fastest and most convenient way? Also I visited the korail website and found it can book the tickets. Can anyone help me, is the ticket one way from yongsan to gapyeong? Or is it two way?
Many many thanks