Wikipedia
Magilligan is a peninsula that lies in the northwest of County Londonderry, Northern Ireland, at the entrance to Lough Foyle. It is a huge coastal site, part British army firing range, part nature reserve. It gets its name from "MacGilligans country", which formed a major part of the barony of Keenaght. It is situated within Causeway Coast and Glens district.
A Martello Tower was begun here in 1812, rather late in the British sequence, as the original plan for a fort at Magilligan point was impractical due to soft ground. A genuinely round tower mounting two 24 pounder guns, it has been beautifully restored but is normally locked. It was built at the same time as the more unusual double-gunned tower across the lough at Greencastle. It was not completed until 1817, two years after Napoleon, against whose invasion it was built to protect, had been exiled to St. Helena. The garrison stationed here never fired a shot at any enemy. During World War II the top of the tower was fitted out with a pillbox. Since the tower was built, deposits of sand have extended the peninsular by several hundred metres and the tower is now located a considerable distance from the sea.
It is close to Bellarena railway station and there is a ferry service which operates all the year around with Greencastle across the lough.
The famous Irish harpist Donnchadh Ó Hámsaigh lived in Magilligan.