Milford Haven Waterway, Bay and ria in Pembrokeshire, Wales

Milford Haven Waterway is a deep natural inlet on the south coast of Wales, formed by the mouth of the Daugleddau River and extending far inland. The waterway connects several land-based channels with the open sea and provides shelter from heavy waves.

In 1171, Henry II chose this waterway as the gathering point for his troops before launching an invasion campaign toward Ireland. This strategic event established the location as a key military harbor in British history.

The shoreline is home to several protected nature areas where seabirds and marine animals thrive in shallow coves and reed beds. This natural wealth continues to shape how local people connect with and value the water today.

The waterway is accessible by car along several small roads leading to various viewpoints along the shores. The best time to explore is from May to September, when weather is more stable and more people use the coastal paths.

The harbor is so deep that it can accommodate large oil tankers and cargo ships, making it an uncommon natural asset. Its depth has been historically valuable for shipping and remains economically important today.