The limestone at this crag varies from exceptionally nice to merely climbable. Lots of small huecos and finger pockets. If you've been to Sununsan, then you'd find the routes here similar (except not as long and generally not as steep). There are a good few multipitch climbs here and enough grade variations to hold an interest for everyone. Although I've encountered quite a few spinning bolts at this place, the Koreans who climb here seem to have no trouble taking whips on them with no ill effect.
Climbing Grades: 5 - 13
Type: Rock Climb Style: Sport
I've come across spinning bolts, some rusted bolts on climbs that don't see much traffic anymore, and some anchors on which the closing gate are missing. Generally, however, most of the bolts are solid. I've never witnessed an instance of rockfall here, although you may want to be concerned with Koreans from nearby routes falling on you while you're hauling yourself up that mono-pocketed crimpy sketch show.
Besides a rope and a rack of about 12 draws, the main thing you want to rememeber to bring to this place is patience... at least if you're interested in climbing one of the most popular routes at the prime area. There are a few climbs there I'd deem worth the wait, but fear not, if you're lacking in patience there's plenty of other areas at this place to keep everyone happy.
There are places to camp right across the river from the main crag, if you can stand the nearby trains, and the late night norae-bongs. Earplugs would be useful for those that sleep lightly. There are also a tonne of minboks, restaurants, restrooms and snack shops.
I imagine there are buses that run from Wonju to Ganhyeon, but don't hold me to this. A twenty-five minute taxi ride would do the trick if a bus wasn't possible. Another option is to take the train to Wonju. There's a stop right outside the gate entrance to Ganhyeon, and following a ten minute walk into the parg grounds, you'll find yourself at the crag.