12 km to Tunxi, Huashan Grottos were opened to tourists in 2000. In a small hilly area, 36 big or small artificial caves were discovered. A few of them have been developed into the tourist sites for excursions. Among all, Cave No. 35, No. 2 and No. 24 are the most impressive ones. Many people believe that these caves were the work left by our ancestor's stone pits.