Prayer areas are the following:

The chapel in the first OAC building, dedicated to the brothers from Thessaloniki, Saints Kyrillos and Methodios, the enlighteners of the Slavs.

The architectural design was by Manos Petrakis.

The large icon of the Holy Trinity (‘Philoxenia of Abraham’) is a replica of the well-known icon by Andreij Rubljov (14th century), and was offered to the OAC as a gift from the Patriarchate of Moscow, in 1979, from the then Patriarch Alexios .

The saints are celebrated on 11 May.

The chapel dedicated to Saint Makarios, which is located in an adapted cave to the north of the OAC facilities, where his memory is celebrated on 19 January.