송악산(Songaksan Mountain’s peak) Consisting of a cinder cone in the middle of the crater and its tuff ring, Songaksan Mountain’s peak, which can also be considered as its mouth, has a depth of 69m and has completely preserved its active form.While it was previously unknown to visitors outside of those with archaeological reasons, recently it has become part of a well-known tour course and now many narrow paths lead to it.Songaksan Mountain was used as Japan’s forward operating base during its invasion of China, the last line of defence during the final hours of WWII. Ruins of airfields, hangars, and anti-aircraft artillery are scattered throughout, with 15 coastal trenches below the coastal cliff, four or five of which have naturally decomposed and pose falling hazards.It has high preservation value because the cave was built using the shore cliff, and the trenches are located by the seaside to create excellent oceanic view.

Osulloc Tea Museum, which is adjacent to the Seogwang tea field in Jeju, is the first tea museum in Korea opened in 2001 by AMOREPACIFIC to introduce and widely disseminate tea and Korean traditional tea culture. It is a cultural space that harmonises East and West, tradition and modernity, and consists of a tea museum, a nature-friendly rest area, and a cafe space where you can enjoy delicious and diverse menus using tea.

산방산 (Sanbangsan Mountain) Sanbangsan Mountain is a trachytic tuff lava dome connected to the sedimentary layer of the Yongmeori Coast  in the coast of Sagye-ri, Andeok-myeon. It is a bell-shaped tholoid that stands tall in the plains of southwest Jeju, allowing it to be seen from anywhere in the area. It is encircled by Ilju Road, which connects Moseulpo Port and Hwasun-ri. Well-maintained stairs are available so that tourists can climb up to Sanbanggulsa Grotto, which stands at the southern face of Namsa-myeon. If you wish to go up to the summit of Sanbangsan Mountain, you can use the trail behind Sanbangsan Mountain, which leads to Deoksu-ri, Yonghae-dong.