The Viking Triangle is the historic core of Waterford City — the area bounded roughly by Reginald's Tower to the east, the Medieval Museum and Bishop's Palace to the south, and the surviving stretches of the medieval city walls. It takes its name from the roughly triangular shape of the original Viking settlement, and within this small area are concentrated most of the city's principal attractions.
Walking the Viking Triangle takes no more than 20 minutes end to end, but the layering of history rewards a slower pace. Viking-era foundations, Norman towers, Georgian façades, and nineteenth-century streetscapes sit alongside each other in a way that's uncommon in Irish cities. The five Waterford Treasures museums are all within the triangle or immediately adjacent to it.
The best way to approach the Viking Triangle is to start at Reginald's Tower on the quays and walk west along the wall line, stopping at the museums and churches along the way.