Blacksod Bay  Blacksod Bay () is a bay of the Atlantic Ocean in Erris, North County Mayo, Ireland. The long and wide bay is bounded on its western side by the Mullet Peninsula. Its eastern side includes Kiltane Parish, which extends southwards from Belmullet towards Gweesalia and Doohoma. Blacksod Bay, which contains many little islets, opens to the Atlantic Ocean. The granite found in this area as most of the rest of the substrate consists of ancient gneiss and schist. The Mullet peninsula is covered with fairly flat sand dunes. Blacksod Bay is wide at its mouth and is a safe place for anchorage. At its northern end, Blacksod Bay is connected to Broadhaven Bay by an 18th-century canal through Belmullet. Blacksod Lighthouse, which was completed in 1862, lies off shore out in the Atlantic Ocean. It was built from locally cut granite taken from the quarry at Termon Hill. It is famously the lighthouse the allies used for the weather forecast on D-day 1944, and the landing was delayed by a day because of an inclement forecast. Eagle Island lighthouse lies off the northwest tip of the Mullet. Bus Éireann route 446 links the area with Belmullet, Bangor Erris, Bellacorick, Crossmolina and Ballina. There is one service a day in each direction, including Sundays. On Friday evenings an extra journey operates from Ballina. Onward bus and rail connections are available at Ballina. Throughout the summer, boat trips to the Inishkea Islands, Inishglora, where the Children of Lir are reputed to be buried, and Duvillaun off the North Mayo coastline leave from Blacksod. Elly Bay is a popular location for many watersports and the location of Colaiste Uisce Adventure Centre, which teaches watersports and other sports through the medium of the Irish language to schoolchildren and adventure groups from across Ireland.