Seoul Trail

The Seoul Trail (Seoul Dulle-gil) is a 156.5-kilometer hiking network that circles the city across 21 scenic routes spanning mountains, streams, and viewpoints. Hikers can track their progress by collecting 28 stamps at designated red booths using either a physical paper booklet or a mobile app with QR codes. Completing the entire course earns participants an official completion certificate.

Commenters express excitement about the trail's accessibility and praise the interactive digital stamp collection system. Several experienced hikers point out that completing the full circuit spans multiple days and can be significantly more challenging in the summer heat.