Volcanoes, mountains and lava tubes 

Mountain Halla 

Mountain Halla is an extinct shield volcano. Halla mountain’s last eruption was 1007 years ago. Halla mountain is the biggest mountain in South Korea. Halla mountain’s height is 1950 m and its area is 1820m^2. Mt. Halla was chosen to be a national park in 1970.  At the top, there is big crater and there is lake there called Baekrokdam.

Top lake of Mountain Halla (Baeklokdam) 백록담 

Mountain Sanbang 산방산

Mountain Sanbang


Sanbangsan is a mountain on the south side of Jeju-do. The name “Sanbang” means mountain with cave inside. You can hike up part of the mountain and see a temple with a statue of Buddha.

Legend of Seolmundae 


A long time ago, there were 500 generals who were Seolmundae Gandma’s sons and they usually hunted in Halla Mountain.

However, the eldest brother got angry because the arrows didn’t work well as he thought, therefore he shot arrow at the air because he wanted to release his anger by that! But that arrow went into theJade Emperor’s flank. He got very mad and he went to the summit of the Mt. Halla and took out a huge rock and threw it, and the place where the rock stayed was Baekrokdam. Also, the rock that falls down to the back of the Sagyeri village became the Sanbang Mountain.

Seolmundae Grandma 설문대할망 

The lava tubes on Jeju have three main parts and together are considered the finest lava tube system in the world.