Welcome to the site, anyung!
I actually didn't have anything in particular in mind. I have attached the old logo. You can see it still in use on some of the pages of the site.
I was thinking something simple that speaks to "Climbing" & "Korea" but definitely climbing. I am not set on any particular color, though i want to stay away from black & white as it's used at rockclimbing.com.
Some themes to play with:
I noticed in your profile you're a graphic designer! Yeah!
Anyway, if you want to give it a try, I am really open to new ideas.