Cuevas de Du-du

100m+ long very large tunnel. There is a large air dome at 50 meters from the entrance. About 15 mins east of Cabrera. Go to the "Dudu Lake" sign; then drive thru for approx 1km near the restaurant. Cuevas de Du-du is also known as El Dudu, Du Du Cave, Du-Du Cave, El Dudu cueva, El dudu lake.