france, salins les bains to the royal saltwork travel landmark

vector illustration landmark salt production natural formation tourism destination historical site underground tunnels mine royal salrks saltwater springs engineering marvel industrial heritage sculptures crystals nature reserve environmental preservation harvesting merchants workers treatments spa town mineralrich water thermal health benefits relaxation fine dining wine tasting local products cheesemaking festivals cultural events reenactment traditions food markets artisanal crafts stunning landscape hiking trails bike routes adventure sports familyfriendly activities ecotourism sustainable unique travel experience hidden gem of france budgetfriendly offthebeatenpath