The 2011 conservation program of the Polish–Egyptian Conservation Mission to Marina el-Alamein covered: elements of the architecture of the Roman tomb T17, additional conservation of columns and stone benches in the main square as part of the anastylosis of its remains, and diverse conservation activities in selected rooms of the complex of Roman baths, including floor mosaics in the southern courtyard portico. A geological field survey investigated building stone material from the site. Other problems investigated included the nature, intensity and scale of the limestone weathering process, occurring in both newly discovered and already protected relics.