I'm going to Seoul, Korea soon

Anyone out there have interesting ideas about things to do in or around Seoul?

I'm currently eyeballing a couple of art supply stores and some tea shops. I'm wondering about neat things to try eating and fun bars to go to.

Also there is a puppet theater and an animation museum in Chuncheon that I'm curious if it is worth the trip to check out. Nami island sounds pretty as well and a hike would be fantastic.

This just in, Chuncheon hosts the International Mime Festival!!!