Post Office – Ballycastle – Opening Hours & Branch Details You will find Post Office situated at an ideal position at 36 Castle Street, approximately 0.33 miles south from the centre of Ballycastle (by Cross And Passion College and Dalriada Hospital). This branch is glad to serve patrons within the districts of Ballycastle Town Centre, Town Parks, Kilcreg, Gortamaddy, Drumavoley, Glebe, Broom-Beg and Clare. Doors are open here today (Friday) from 6:30 am to 11:00 pm. This page will give you all the information you need about Post Office Ballycastle, including the hours of operation, address description, direct contact number and further details.