Seongsan Ilchulbong Peak rose from under the sea in a volcanic eruption over 100,000 years ago. Located on the eastern end of Jejudo Island, there is a huge crater at the top of Seongsan Ilchulbong Peak. The crater is about 600m in diameter and 90m high. With the 99 sharp rocks surrounding the crater, it looks like a gigantic crown. While the southeast and north sides are cliffs, the northwest side is a verdant grassy hill that is connected to the Seongsan Village. The ridge provides an ideal spot for walks and for horse riding as well.
The sunrise from the crater is magnificent. Also the Seongsan Ilchulbong Peak surrounded by bright yellow colored rapeseed flowers in the spring is truly a sight to behold.
Seopjikoji is located at the end of the eastern shore of Jeju-do Island. "Seopji" is the old name for the area, and "Koji" is Jeju dialect meaning a sudden bump on land.
Green fields without a single tree spread beyond the cliff to where a rock called “seondol” protrudes. Also there are stonewalls along the road to block the wind on the way to the lighthouse at the end of Seopjikoji. Within the stonewalls, you may find the most brilliant rapeseed flower fields every April.
Going up the metal steps of the lighthouse, you can view the whole seashore at a glance. On Koji hill, there stands a stone Bongsudae (4 m high, 9 m long and wide) that retains its original form.