Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Las Cruces Hot Springs emerge in the rugged backcountry of Santa Barbara County, California, at the edge of the Los Padres National Forest where the Santa Ynez Mountains give way to chaparral-covered terrain above the Pacific coast. Iron-rich water surfaces at 38 °C with a notably low pH of 6.3, giving it a mineral edge and a faint reddish tint from dissolved iron compounds. Reached only by a hiking trail, the springs retain the character of a genuine wilderness soak: no infrastructure, no amenities — just the sound of the creek, the smell of sage and chaparral, and warm water in a stone basin beneath an open California sky.
Insider tip — These coastal California hot springs emerge along a fault trace in the Santa Ynez Mountains near the Pacific shore, where iron-rich geothermal fluids have long attracted hikers willing to make the trek through chaparral scrubland. The setting blends marine and mountain environments in a way unique to the Central Coast, with sea breezes cooling bathers even in summer heat. The springs sit within Los Padres National Forest, requiring a hiking permit and a commitment to leave-no-trace principles. Sunrise soaks here offer views of Channel Islands silhouettes floating on the Pacific horizon on clear mornings.
