Located at the hillside where Nanshi River and
its tributary Houtong River meet.
The elevation is between 200 to 500 meters
and the area is about 73,000 square meters.
Wulai-Ulai-means “hot spring”，
According to the legend, the natives saw the rising steam
from the river and discovered the hot spring coming out while hunting in the area,
“ulaikirufu” they yelled spontaneously, which means “hot spring” in Atayal