We are 4 Americans travelling to Incheon on October 19. We are arriving by cruise ship and wonder about one day tours of Incheon. Our one day in this port is a Sunday. What are the "must see" things in Incheon? We're not big on museums, but we do like cultural sights and bargain shopping and markets. Would love to get some suggestions on transportation and what to see in our one day. Do you suggest a guided tour, or hiring a taxi driver for the day?