Creugenat, Karst spring in Haute-Ajoie, Switzerland
Creugenat is a karst spring in Haute-Ajoie, Switzerland, forming part of a cave system extending about 2.5 kilometers. The water drains from a catchment area of roughly 48 square kilometers across the Jura region.
Speleological exploration started in 1933, followed by the first diving attempt in 1934 into the underwater passage. Early expeditions revealed the extent and complexity of this subterranean water system.
The name comes from local Jura dialect and refers to a small depression or the action of digging into the earth.
The site remains open year-round without entry charges and is easily reached from Motorway 16 exit 4. Follow the signs toward Porrentruy and continue through Courtedoux to arrive at the spring.
During flood events, which happen four to five times yearly, water discharge increases dramatically. These temporary floods transform the area and show the power of the underground water system.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
