Han River Public Park might be the most beloved hang-out & picnic place for Seoul people. Many parks are spread along side the river. You can see so many people with various activities here. Especially, in the summer time, people go on a picnic to the Park for having Chimaek Time with KFC! You can also order any food from here by delivery service! You will be amazed to see how fast the delivery service is! Welcome to Korea! :) Plz, take a few hours here with beer as looking at the cityline of Seoul and watching the local people here!
Seoul, Mangwon-dong, 한강공원입구