... the study and enjoyment of Geology ... Cultra, Co Down.  Rocks of the Permian period.  Connswater Marl overlying magnesian limestone.  54.65672, -5.81132. Updated 02/08/2017 About us Summer prog. Winter prog. Contact us Useful links Home Next Meeting: August 26th                                                            <details> UNDERGROUND, OVER GROUND, WONDERFUL SCREE