Bringing this thread up from the dead, hoping to catch the attention of PDKL45 as I'm considering a trip to Korea in September, hoping to ride some of the river trail and finish up with a trip to ride around Jeju Island, hike up its mountain, etc.
Would you guys recommend renting a bike or bringing my own (probably a folding 20" tire bike)?
If not on an organized tour, is it simple for a westerner to get a hotel room or hostel each day without having advance reservations?