South Korea most of which is not arable. Lowlands, located primarily in the west and southeast, make up only 30% of the total land area. About three thousand islands, mostly small and uninhabited, lie off the western and southern coasts of South Korea. Jeju-do is about off the southern coast of South Korea. It is the country's largest island, with an area of . Jeju is also the site of South Korea's highest point: Hallasan, an extinct volcano, reaches above sea level. The easternmost islands of South Korea include Ulleungdo and Liancourt Rocks (Dokdo/Takeshima), while Marado and Socotra Rock are the southernmost
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,