Hallasan National Park (9.6 km), Seokgulam Trail (1.5 km), Gwaneumsa Trail (8.7 km), Donnaeko Trail (7 km), and Eoseungsaengak Trail (1.3 km). The longest trail is Seongpanak Trail which takes about 4.5 hours. Hallasan comprises 153.112 km of the Jeju Island. It rises 1.950 m above the sea level which means the highest mountain in South Korea. This mountain was formed in the fourth Cenozoic era by outburst of volcano. It is mostly composed of basalts. It is extending east and west, and it has high and gradual descent. On the other hand, the south part of the mountain is steep. In the
Volcano: The Blast Coaster the train to . After making a sweeping 200-degree turn behind the mountain, the train enters the second launch tunnel, followed by a vertical section ending in a "roll out" element. The "roll out", similar to a sidewinder, is a vertical section of track followed by a quarter loop to bring the train completely upside down, then a loose half-corkscrew. According to Roller Coaster DataBase, the roll out element is unique to Volcano. The highest point of the roll out is above ground level, making it the tallest inversion at Kings Dominion, taller than Dominator's vertical loop. After the roll-out,