Daecheongbong is the highest peak in Seoraksan at 1,708 metres and the third highest mountain in South Korea. Summit access is regulated — visitors must book one of the limited permit spots and spend a night at the Jungcheong mountain shelter at 1,625 metres before ascending in the morning. The restriction keeps summit numbers manageable and preserves the alpine environment above the treeline.
The most common approach is from the Oesorak side via the Cheonbuldong valley and Yangpokdong ridge — a full day of hiking with a night at the shelter. The views from the summit encompass the whole park and on clear days extend east to the sea. The summit environment is genuinely alpine, with dwarf pines, exposed granite, and harsh winds even in summer. In early spring, snow patches often remain near the summit into May.