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
La Soufrière (volcano) La Soufrière (volcano) La Soufrière (Vincentian Creole: "Soufray") ("The Sulfurer") or Soufrière Saint Vincent is an active volcano on the island of Saint Vincent in the Windward Islands of the Caribbean. Many volcanoes in the Caribbean are (French: "sulphur outlet"). These include Soufrière Hills on Montserrat and La Grande Soufrière on Guadeloupe, the subject of Werner Herzog's 1977 film "La Soufrière". At , La Soufrière is the highest peak on Saint Vincent as well as the highest point in the island country of Saint Vincent and the Grenadines. Soufrière is a stratovolcano with a crater lake and is the island's