Manjanggul
Manjanggul is a lava tube and protected area in Jeju, South Korea. It is recognized as a Natural Monument of South Korea and covers an area of 1.09 km2. It is one of the 61 sights in the country listed on this site and is ranked 54th in popularity among South Korea's sights by English Wikipedia lookups.
Planning a visit
The cave is closed until 31 December 2025. When open, the entry fee is ₩2,000, and the site does not offer wheelchair access. The cave is located in Gimnyeong-ri or Woljeong-ri. To reach the site, travelers can use Jeju International Airport, which is 26 km away, or travel from Seoul, which is 449 km from the site.
The warmest months are August and July, with daily highs of 27 °C and 26 °C. These months also receive the most rain, with 351 mm in August and 306 mm in July. In contrast, December is a drier month with 58 mm of rain and highs of 10 °C, while March has highs of 11 °C and 131 mm of rain. Other nearby sights include Seongsan Ilchulbong, Samseonghyeol, Love Land, and Jeju Volcanic Island and Lava Tubes.
Weather by month
The warmest month is August, with an average high of 27 °C. The wettest is August, with about 351 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 8 | 8 | 11 | 15 | 18 | 22 | 26 | 27 | 24 | 20 | 15 | 10 |
| Average low, °C | 4 | 5 | 7 | 11 | 15 | 19 | 23 | 25 | 22 | 17 | 11 | 7 |
| Rainfall, mm | 77 | 82 | 131 | 146 | 157 | 260 | 306 | 351 | 281 | 103 | 84 | 58 |
| Rainy days | 7 | 7 | 9 | 9 | 10 | 12 | 18 | 16 | 14 | 7 | 8 | 6 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
