Water needs were provided by cisterns, which gathered rain
waters, due to lack of natural spring in the area of Alanya Castle. As seen
today, each traditional house has had its own cistern. Besides, large cisterns
in the area ensured a general water supply. Castle (İçkale) is also called
Cistern Castle for holding large cisterns in it. Most of the cisterns are 13th
century structures.
Mecdüddin Cistern located in Hisariçi Neighborhood is a 13th
century building. Rectangular plan with barrel vaulted, the structure is
bordered with quarry stone walls, raised from exterior. Grog with brick wall at
interior, its surface is plastered. A small section with raised wall on west
side gives U shape to plan of the cistern. On upper part, there are total three
shafts for water extraction and one drain hole.