There's a Pride Parade in Seoul this weekend.
From 11am-6pm, around the Cheonggyecheon area, you can check it out.
Here's the Korea Queer Culture Festival website.
Here's the facebook page for the event.
Here's the facebook page for the group.
Here's a brief look at acceptance of Queer culture in Korea (diagnosis: still pretty weak), from Popular Gusts.
And an article from 2008's Pride Parade, on OhMyNews (English).
and Kiss My Kimchi's write-up of the 2008 Parade