Sillim-dong Jiok Valley
A narrow forested valley on Gwanaksan's northern slope, running from Sillim-dong up through increasingly dense forest to a series of granite outcrops with views over the SNU campus. "Jiok" (地獄) means hell — the valley was named for its steep, punishing climb, though the lower section is gentle enough for casual walkers. The upper ravine has a small waterfall visible after rainfall and several Buddhist hermitages carved into the cliff face. Far quieter than the main Gwanaksan trails; the trailhead is a 10-minute walk from Sillim station. Good for escaping the weekend crowds on the main mountain routes.
"This place is waiting for its first photo.
If you've been here, share your view —
others would love to see it."
