Manjanggul Lava Tube

만장굴 [유네스코 세계자연유산]

Lava tube reopened after 2½ years, ending at a 7.6 m lava column

⚠ 11–15°C inside, bring a layer

Hours
Check post-reopening hours and closing days before you go.
Tickets
Adults ₩4,000 (per 2026 reopening reports); pay on site
Address
182 Manjanggul-gil, Gujwa-eup, Jeju City

Walk down the steps to the entrance and cold air rolls up at you even in August. Lava carved this tunnel, so the ceiling is rounded like a railway bore and the walls carry flow lines where the molten rock drained out. It closed after a rockfall at the end of 2023 and reopened on 30 May 2026 with a boardwalk along the whole open stretch of about 1 km. The 7.6 m lava column at the end is the big moment.