Originally Posted by
mikesaidyes
Don't worry. There are MANY paid lounges you can use like Matina, Gold Matina, SPC Lounge, L Lounge. There are also free showers in the rest and relax area of the airport. You can totally have a great time without just idling by the gate. Also check out the Korean Cultural Experience Center for some activities like wearing hanbok, writing your name in Korean. ICN T2 really is WONDERFUL.
The free Transfer lounge and food court could be a good option for OP.