In a couple days, I'll be arriving at Incheon International Airport (ICN) at around 5 AM local time, and departing 6:40PM. Will sleep till 10AM - 11AM, leaving me with 7 hours of free time.
What's the best way to get a taste of South Korean culture and life in these hours? I know there is a high-speed train to Seoul which takes 45 minutes both ways, but I'm not so sure yet of going that far from the airport. Then again, I would like to get out of the airport if possible, to see some of Incheon.
What are the best places and destinations to go during these six hours? Is it wiser to stay inside ICN or should I spend sometime exploring the area on foot/train/bus? This is assuming that I will have a secure place to put luggage. I can also exchange money for Korean Won.