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
Sincholagua Volcano Sincholagua Volcano Sincholagua is an inactive volcano located in Ecuador northeast of Cotopaxi Volcano and southeast of Quito. It is the 12th highest peak in the country at but also one of the lesser known ones. The name of the mountain comes from the indigenous language Quichua and means "strong above". Due to its close proximity to Cotopaxi, the second highest peak in Ecuador and the most popular volcano, it is far less frequently visited compared to other mountains in the country. It has a sharp peak and at one point had glacial cover year round, but all of the