Hallasan National Park Hallasan National Park Hallasan National Park () is located in the province of Jeju-do, South Korea. It was designated as the 9th national park in 1970. It features the highest mountain in South Korea, the shield volcano Hallasan on Jeju Island. It was designated a UNESCO Biosphere Reserve in 2002, and a World Heritage Site in 2007. Hallasan National Park is managed by Jeju Special Self-Governing Province. It is the only out of 20 national parks that is not managed by the Korea National Park Service. Hallasan has 7 trails: Eorimok Trail (6.8 km), Yeongsil Trail (5.8 km), Seongpanak Trail
Shield volcano system. Venus also has over 150 shield volcanoes which are much flatter, with a larger surface area than those found on Earth, some having a diameter of more than . Although the majority of these are long extinct it has been suggested, from observations by the Venus Express spacecraft, that many may still be active. Shield volcano A shield volcano is a type of volcano usually composed almost entirely of fluid lava flows. It is named for its low profile, resembling a warrior's shield lying on the ground. This is caused by the highly fluid (low viscosity) lava erupted, which