close-up of children's hands under the tap of mineral water spring called "karolina spring in marienbad

beneficial bohemian calcium close cure czech republic destination disease drink europe famous healing health care resort historical holidays illness landmarks leisurely magnesium marianske lazne marienbad mariaiexcl nskacopy laiexcl zna medicinal spring mineral water recreation recreational activities rest restful sightseeing spa sparkling stay sudetenland summer tap therapy thermal tourist traditional travel treatment trip vacation wellness close-up children's hands karolina karolinin pramen