Several sport climbs around a natural bridge in the Musucheon river bed. Similar rock to Musucheon. I was told that these are some of the newest routes put up on the island, so all of the bolts and anchors are in perfect shape. The rock tends to be a bit polished, so chalk is a must.
The river bed intersects 1135 right here: 33.460411, 126.447505 (there is a bus stop here: Musucheon).
From there, hike south down the riverbed. After 10 minutes or so you'll come up to the natural bridge: impossible to miss. There's also some cool opportunities for bouldering along the way.
It's a riverbed, so watch out for flash floods if it's raining.
Gear to Bring
60 m rope will do the trick for everything, and 10 quickdraws will take care of all of the routes.
Lots of cool routes, one starts as a 5.7 and then traverses the natural bridge. You're not far from civilization, but it's never a bad idea to bring snacks...