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The spa has been operating since the days of the Tang Dynasty, and its warm (109°F/43°C) mineral waters, containing lime, sodium carbonate, and sodium sulphate, are still enjoyed by locals and visitors today. The waters are particularly recommended for the treatment of dermatitis, rheumatism, arthritis and muscular pain. The ancient imperial bathing pools can be visited, including the Hibiscus pool, dating from 712AD, which has been restored and is open to the public.
There is also a fascinating museum at the site containing building materials from the Tang Dynasty. Another attraction at the springs is the Hovering Rainbow Bridge. This bridge reflects the sunset in such a way that it appears to be a rainbow.