Ak-kala – A few hundred metres in front of the Butentau Cave Settlement stand the mud-brick walls of Ak Kala, once the late medieval town of Adak.

The walls are roughly square in plan, with five semi-circular towers along each side and a round tower at each corner. There is a walled rectangular ‘suburban’ space on the north side of the settlement. The proximity of the three very different attractions of Ibrahim Sultan, the Butentau caves and Ak Kala make the Butentau area a worthwhile destination for an excursion, overnighting at Ibrahim Sultan, into a little-known area of Turkmenistan.