The area of Mt. Paektu in Korea has many geologically peculiar spots formed by volcanic eruptions.
The Paektu Falls is found about two kilometres southeast of Janggun, the main peak of Mt. Paektu.
The 0.8 metre-wide falls was formed when the lava from several eruptions of the Paektu volcano flowed into the valley to make tiers.
Under the falls is an oval pool dug by cascading water. Its circumference is 20.1 metres and its maximum depth 0.75 metres.
Rare alpine flowers decorate the cliff beautifully in spring and icicles hang in autumn aflame with the glorious tints of foliage, presenting a marvellous scenery of the alpine steppe zone. In winter the falls turns into a hollow ice column with water pouring down inside.
About one kilometre east of the Paektu Falls, there are the Hyongje or Brothers Falls with two waterfalls cascading abreast. They are 1.5 to 2 metres wide.
The falls have a large volume of water as they are mainly fed by a spring rising from the Lake Chon. Water falls down a nearly vertical cliff, sending up clouds of spray to make the scenery more beautiful.
At the foot of the falls is a pool 1 metre deep and about 10 metres around.
The Sagimun Falls is a three-tier one near the Paektu Falls.
The first tier is 6.7 metres, the second 4 metres and the third 7.2 metres high.
Spring water rising from the Lake Chon flowed along the valley and fell down a cliff to form the falls.
There is a pool about 11 metres around under the falls.
The Rimyongsu Falls is found on the shore of the Rimyong Stream, a tributary of the Amnok River flowing through northwest Korea. It is a two-tier underground waterfall and is 27 metres wide.
It has several main water courses and numerous cascades between them.
It presents colourful scenery from season to season, the most unique of which is the snowscape in winter. Water falls down ceaselessly in good harmony with queer shapes of ice, spray and frostwork.
The Rimyongsu Falls is a rare and mysterious underground waterfall and preserved as a natural monument.