The Irish Sea,
shore to shore.

Milford Haven begins with a generous piece of geography: a river valley flooded by the sea. The deep, branching waterway has sheltered Viking ships, whalers, fishing fleets and naval vessels. Today tankers, ferries and yachts share it. The terminals and commercial quays belong to the place as surely as the wooded creeks and village waterfronts.

Neyland, Milford and Dale offer different shores within that same waterway. Neyland puts the Brunel Trail close to the marina; Milford’s docks bring shops, restaurants and the harbour’s history together. Near the mouth, Dale has a village waterfront and a pebble-and-sand beach. Moving between them brings the working port and its quieter corners into the same view.

Conwy’s castle stands above the river approach, with the walled town gathered behind it. From the water, the relationship between fortress, harbour and town is immediate. The castle visit and a walk along the quay belong together; the mountains inland give this corner of the coast a scale beyond the marina.

Anglesey and the inside water

Between Anglesey and the mainland, the Menai Strait changes the view: wooded shores, rocky islets, the suspension bridge and the mountains of Eryri across the water. Beaumaris faces the eastern end; Caernarfon lies towards the southwest. The Swellies, between Menai Suspension Bridge and Britannia Bridge, are the concentrated tidal heart of this passage. Shelter from waves here comes with fast-moving water.

Dublin Bay offers two quite different arrivals. Dún Laoghaire occupies the southern shore behind enormous harbour walls; Howth has a working harbour beside a green peninsula to the north. Both connect to Dublin by DART, so the city and the coast can be explored from the same berth.

Howth: fishing harbour and headland

Howth’s fishing quays, seafood places and walks around the headland give it a harbour-village character close to the capital.

Dún Laoghaire: a harbour built for shelter

Construction of Dún Laoghaire’s harbour of refuge began in 1817. Its long stone arms explain the scale of the place before you step ashore. Walking East Pier turns that engineering into a view across the bay; the maritime museum, cafés and Sunday market bring the town closer.

Belfast Lough: from Bangor to the working city

Bangor offers a marina and town waterfront near the mouth of Belfast Lough, with rail access to Belfast. Around Eisenhower Pier, the waterfront carries a wartime story as well as everyday harbour life: the pier recalls Eisenhower’s 1944 visit to troops preparing for Normandy. Black guillemots nesting here are locally known as “Bangor Penguins”.

Farther into the lough, Belfast’s docks explain how a port helped make a city. Straightened channels and reclaimed land created room for larger ships, quays and shipbuilding. The waterfront still holds cranes, ferries and cargo alongside its museums and newer buildings. Along the Maritime Mile, the slipways, SS Nomadic and Thompson Dock make the industrial scale visible; Titanic is one part of that larger story.

Strangford: through the Narrows, into another scale

Strangford lies around the Ards Peninsula from Belfast Lough. Its entrance gives little hint of the water inside: a narrow tidal channel opens into a broad lough scattered with islands, shallows and wooded shores. The change from open sea to this enclosed landscape is one of the region’s strongest contrasts.

Sailing clubs, village quays and birdlife give the interior its character. Strangford and Portaferry face one another across the entrance, joined by the ferry. Farther inside, the islands and tidal flats make the shoreline change with the water level. Castle Ward’s 4 km loughside walk follows woodland and shore, with some short, steep sections; the estate visit has its own admission and land-access arrangements.

The roughly four-nautical-mile Narrows can carry currents up to 8 knots. That concentrated entrance governs access to the lough; shelter inside does not remove the need to time the passage through it. The local landscape authority explains the channel and the protected habitats beyond.