Yangming, the Ssuchong River, and Chihpen as one of Taiwan's top five hot spring areas. (Taiwan's only mud springs can be found there, too.) The springs, averaging 75-80oC in temperature, are naturally effervescent and mildly alkaline. The waters have a strong sulfurous odor, and leave the skin feeling velvety.
關子嶺風景區著名的關子嶺溫泉係名列台灣五大溫泉之一 (北投、陽明山、四重溪、知本)，亦是全省唯一的泥泉，屬於弱鹼性碳酸泉，水溫約攝氏七十五到八十度左右，水質滑膩並有極濃的硫磺味，對皮膚病、風濕關節炎具有特殊療效，其源頭位於警光山莊寶泉橋後方處。