Dún Laoghaire The Essential
This town, which is Ireland's main port for ships arriving from Great Britain, is named after Laoghaire, the High King of Ireland in the 5C, who built a fort here. The growth of trade with England in the 18C transformed this small fishing village into a busy port. Development of the docks (100ha) was begun in 1817 following a design by John Rennie. The main construction, built from Dalkey stone, was completed in 1842.