Geothermal Valley_Hell Valley_Ghost Lake. Geothermal Valley is located next to Beitou Hot Spring Park and is one of the sources of Beitou Hot Spring. Because it is filled with sulfurous smoke all year round, it reminds people of a terrifying hell. Geothermal Valley is located next to Beitou Hot Spring Park and is one of the sources of Beitou Hot Spring. Because it is filled with sulfurous smoke all year round, it reminds people of a terrifying hell, hence it is also known as "Hell Valley" or "Ghost Lake." The hot spring here is the hottest spring within the Tatun Mountain volcanic group. The scenery of sulfurous smoke filling the air is dreamlike and ethereal, like a fairyland, and was one of the eight scenic spots and twelve famous sites of Taiwan during the Japanese colonial era. The stones in Geothermal Valley contain the radioactive element "radium," called "Hokutolite," which is the only mineral named after a place in Taiwan among thousands of minerals in the world. Currently, this mineral is only found in Beitou, Taiwan, and Tamagawa, Japan. In recent years, to restore Hokutolite, a Hokutolite protected area has been established. Visiting here allows you to not only feel the sentiment of a hot spring town but also gain a deeper understanding of this unique mineral. The temperature of the spring water in Geothermal Valley is between 80℃ and 100℃. It is a hydrochloric acid spring with a very high pH, making it corrosive. It is commonly known as "green sulfur spring" and "sulfur spring head." In the past, tourists often used the high-temperature spring water in Geothermal Valley to cook "hot spring eggs." However, in recent years, to protect the quality of the hot spring water and prevent accidents from tourists falling, the public has been prohibited from cooking eggs in Geothermal Valley! Don't bring food when you visit Geothermal Valley, lest you be disappointed! The current Geothermal Valley
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