Mazi Underground City

verifiedAskCappadocia says

We send experienced explorers here for the raw, unvarnished alternative to Cappadocia's better-known underground cities. Mazi demands more from you—tighter tunnels, low ceilings, actual climbing through ventilation shafts between levels—but rewards that effort with an authentic, almost archaeological feel. Come when you want to test your nerve, not just take photos.