Post Office – Londonderry, Bellarena – Opening Hours & Branch Details Post Office is situated currently at 436 Seacost Road, about a 17.50 mile driving distance north-east of the centre of Londonderry (alongside A2 / Seacoast Road). This branch is situated fittingly to serve those from the districts of Ballymultimber, Clooney, Margymonaghan, Duncrun, Lenamore, Ballyscullion, Ballymulholland and Drumavally. Its working times are from 7:30 am to 9:00 pm today (Friday). This page will provide you with all the information you need about Post Office Londonderry, Bellarena, including the business times, local directions, direct number and further details.