Wakura Onsen Yumoto (‘origin of the hot spring’), Noto Peninsula, c. 1930.

“With 1,200 years of recorded history, Wakura is one of the oldest bathing towns around, even by high Japanese standards.

“Yumoto no Hiroba (湯元の広場, ‘origin of the hot spring public square’) is in the central point of town. This is the spot where the hot spring bubbles up and is shunted off into all the hotels via a proudly displayed if rather unsexy set of pipes and pumps. There’s also a spot to boil your own eggs in spring water (15-20 minutes).”

– Wikitravel