BAC Challenge
What is BAC 100?
The Blackyak Alpine Club (BAC) 100 is a peak-bagging certification program run by Korean outdoor brand Blackyak — not a government body. Hikers summit all 100 designated mountains and verify each climb using the official BAC app (GPS check-in + photo at the summit marker).
The list overlaps heavily with the Korea Forest Service's official 100 Famous Mountains, but isn't identical — Blackyak curated its own selection based on popularity, accessibility, and scenic value. Finishing all 100 is one of the most respected achievements in Korean hiking culture.
Explore the BAC 100 →Latest Posts
Watch the Trail
See the real trail conditions before you go. No edits, no music — just the mountain.
More videos on YouTube →Who's Behind This Blog
A Korean Hiker Writing About Korea's Mountains
Working through the BAC 100 — Blackyak's 100 Famous Mountains challenge — one peak at a time. Every trail I complete gets a full write-up so the rest of the world can follow the same path.
I also film my hikes on YouTube — real trail footage with no edits, so you can see exactly what to expect.
Read About Korea Peak →