Description
Bu Môr Hafren, â’i gerrynt pwerus, yn ffin rhwng dwy genedl am ganrifoedd, a hyd nes i Bont Hafren gael ei hagor yn 1966, yr unig ffordd i groesi’r aber oedd ar y fferi neu’r twnnel rheilffordd.With its powerful tides and one of the highest tidal ranges in the world, the Severn Estuary was a barrier between two nations, and until the Severn Bridge was opened in 1966, the only way to cross the Severn Estuary was by ferry or railway tunnel.
