Lurgrotte
... that in 1894, a flash flood trapped seven cave explorers in the Lurgrotte karst cave of Austria for ten days?
... that in 1894, a <a href="./Flash_flood" id="mwAj8" rel="mw:WikiLink" title="Flash flood">flash flood</a> trapped seven cave explorers in the <b id="mwAkA"><a href="./Lurgrotte" id="mwAkE" rel="mw:WikiLink" title="Lurgrotte">Lurgrotte</a></b> <a href="./Karst" id="mwAkI" rel="mw:WikiLink" title="Karst">karst</a> cave of Austria for ten days?