Hi Philipp! Would be great to see you again! There are plenty of accomodation options in Seoraksan-- the best is the climbers' shelter at Bisandae. It has limited space, but Masa and I could get berths, then if more KOTR people come and it's full, we could get our tents and move into the "overflow" lot (camping is generally not permitted here, but exceptions are made if the hut is full). . . I've been here several Chuseoks and some days it's full-- other's near empty. With the short short holiday, it's anybody's guess. There is an official campground, but loud, expensive and a bit outside the park. . . some unofficial but good camping near the sport areas. . . I know Brandon has a biggish tent if the weather is nice
Near the entrance you can store gear relatively cheap if you don't want to hual it all up to the shelter. . .
Best places to meet:
Sokcho-- near E-mart and the Express Bus terminal is the Haesupia, a kinda ritzty jjimjilbang, but a good place to meet of folks are arriving at various times of the day and night. If Philipp did get the company van, he could pick up here. . . or everyone could bus/cab it (busses #7 and 7-1 run to the park).
In the park-- there is a giant Buddha near the entrance, or everyone could hike into Bisandae shelter, about two hours along a nice path. There's a good restaurant, a nice river, and time to scope all the routes! (topos hang in the shelter if you don't have them!)
Who's got ropes? Me, Lindsey, Heather, Danielle, Brandon. . . so that should be OK. . . Two ropes (or two teams with one rope each) are necessary for trad/multipitch, as are helmets. I can't emphasize that enough!
Also, by the sport area is a nice swimming hole-- as it's right on the trail, a swimsuit would be in order during the holiday season!