İnsuyu Cave
... that excessive drilling of artesian wells in the valley near İnsuyu Cave caused the lakes inside to nearly go dry?
... that excessive drilling of <a class="mw-redirect" href="./Artesian_aquifer" id="mwCrw" rel="mw:WikiLink" title="Artesian aquifer">artesian wells</a> in the valley near <b id="mwCr0"><a href="./İnsuyu_Cave" id="mwCr4" rel="mw:WikiLink" title="İnsuyu Cave">İnsuyu Cave</a></b> caused the lakes inside to nearly go dry?