Hwanseon Cave

Hwanseon Cave 3rd on the list of the most beautiful caves in Korea. It is a cave in South Korea's Gangwon Province. It is one of Asia's longest limestone caverns, and Korea's largest, with a known length of 6.2 kilometers and a total length of up to 8 kilometers. 6 km, which attracts about 1 million tourists each year. The Korean government agreed to expose Gwaneum Cave, National Monument 178, and its adjoining caves to the public in 1966. In 1997, Hwanseongul was opened to the public.

The cave is 10 meters high and a 30-45 minute uphill trek from the box office to the entrance. It is located in a chain of jagged limestone mountains near Samcheok city. The temperature inside varies between 10° and 14°C. Streams, waterfalls, and ten big lakes flow down the cave walls from various fractures and seeps. Some of the cave's chambers are over 100 meters long, and bridges have been built to connect them. The cave's rock formations have been given several names, however stalactites and stalagmites are rare due to the cave's fast flowing water. Korean thunderstorm Onychodactylus fischeri, spider Allomengea coreana, cave cricket Diestrammena japanica, centipedes Epanerchodus kimi and Antrokoreana gracilipes, moth Apopestes indica, and an amphipod are among the 47 species of fauna found in the cave.

Pseudocrangonyx is a genus of Pseudocrangonyx. The beetle Kurasawatrechus latior is one of four species found alone in Hwanseon Cave. The cave is open all year; it takes one hour to walk through the cave's 1.6 steel passageways, minus the 1.3-kilometer road outside the cave and the 200-meter ascent to and from the entrance.

Location: 800 Hwanseon-ro, Singi-myeon, Samcheok-si, Gangwon-do