Mikuni Onsen Yuaport Live Cam

Geological Origins

Nestled along the rugged coastline of Sakai, Mikuni Onsen Yuaport owes its existence to the dynamic interplay of tectonic forces and volcanic activity that have shaped Fukui Prefecture over millennia. The bedrock in this region is part of the ancient Ryoke metamorphic belt, formed during the late Cretaceous period, and the hot spring springs forth where groundwater percolates deep through fault lines before emerging as mineral-rich thermal water. This hydrothermal circulation imparts distinct characteristics—sodium chloride and sulfate ions combine to create a saline hot spring known locally as “kōshio onsen,” prized for its skin-smoothing properties. Water temperatures at the source average 48°C, making Mikuni Onsen Yuaport a true day-use onsen facility where visitors can enjoy therapeutic immersion in naturally heated pools without staying overnight.