Hot Water Hollow

　　Hot Water Hollow is situated at the southern foot of Huanghua Mountain, at the boundary between Beitu Township and Fulu Township. It features two natural hot springs where water emerges from rock fissures at a depth of over 1,100 meters. With a high water temperature of up to 53°C and a large water pool at the spring outlet, locals call it "Hot Water Hollow." On August 30, 1988, it was jointly certified by China's Ministry of Geology and Mineral Resources, Ministry of Health, and Ministry of Light Industry as high-quality drinking natural mineral water. It contains 39.0–46.8 mg/L of metasilicic acid, an EH value of 7.0–7.4, and 0.34–0.36 mg/L of strontium, meeting China's national standards for drinking natural mineral water. In addition to being potable, the mineral water also contains radon at 37.4 eman, reaching the standard for therapeutic mineral water, showing great potential for development.