There is more than one way to walk through the cypress forest on Mount Chukryeongsan. Jangseong County's official tourism guide describes four O2 Trail sections totaling 23.6 km. Treating that total as one quick walk can lead to an inconvenient itinerary.
Section 1 covers 9 km from Moam Village toward Geumgok Film Village. Section 2 continues for 6.3 km toward Chuam and Goejeong, Section 3 is 4.5 km toward Daedeok, and Section 4 returns toward Moam over 3.8 km. The county's estimated times are about three hours, three hours, ninety minutes and eighty minutes respectively, but your pace and weather will change these estimates.
Choose your starting point carefully. The county lists parking at 89-109 Daedeokhansin-gil for Daedeok, Moam-ri 569-4 for Moam, Chuam-ri 669 for Chuam, plus two Geumgok parking areas. For a one-section visit, plan how to return from the endpoint as well as where to park.
The county page lists free admission and parking, but it was updated in December 2022, so verify any changes. Current winter closures, forestry work and live parking conditions were not confirmed. A shorter walk through one section can be every bit as rewarding as trying to finish the entire trail.