[1] Water that falls from the ceiling of the cave is said to be the tears of Sanbangdeok (산방덕; 山房德), a goddess that protects the mountain.

[1] According to legend, the grandmother deity Seolmundae Halmang plucked Hallasan's peak and fashioned it into Sanbangsan's current form.

[4] Sanbangsan has columnar jointing stone structures, particularly on its southwestern slope, giving it a honeycomb appearance.

In 1993, around 247,935 m2 (2,668,750 sq ft) of the cliff walls with plantlife were designated a Natural Monument of Jeju Province.

[4] The cave has been used as a Buddhist temple called Sanbanggulsa (산방굴; 山房窟) from since at latest the 918–1392 Goryeo period.

[4] Since January 1, 2022 and until December 31, 2031, access to much of the upper parts of the mountain is restricted for the sake of environmental protection.

[4][8] South of the mountain is a theme park called Sanbangsan Land (산방산 랜드).