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Milford Haven Waterway is a natural harbour in Pembrokeshire, Wales. The Haven is a ria or drowned valley flooded at the end of the last Ice Age formed by the Pembroke River and the Daugleddau estuary, and winds west to the sea. As one of the deepest natural harbours in the world, it is a busy shipping channel, trafficked by ferries from Pembroke Dock to Ireland, oil tankers and pleasure craft.
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The Pembrokeshire Coastal Path (Welsh: Llwybr Arfordir Sir Benfro), is a designated National Trail. It is 186 miles long.
The southern end of the path is at Amroth. The northern end is St. Dogmaels. Here the path links with the Ceredigion Coast Path, which continues northwards.
The Pembrokeshire Coast Path forms part of the Wales Coast Path, an 870-mile long-distance walking route around the whole coast of Wales from Chepstow to Queensferry, which was officially opened in 2012.