England, Tyne and Wear, St Mary's Island. Sunrise at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Tyne and Wear, St Mary's Island. Pre-dawn at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Tyne and Wear, Whitley Bay. North Sea high tide waves on the beach at Whitley Bay viewed at sunrise.

England, Tyne and Wear, St Mary's Island. Pre-dawn at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Tyne and Wear, St Mary's Island. Pre-dawn at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Tyne and Wear, St Mary's Island. Pre-dawn at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Tyne and Wear, St Mary's Island. Pre-dawn at high tide with the north sea covering the causeway to St Mary's Island and lighthouse, a popular location near Whitley Bay.

England, Northumberland, Alnmouth. The Aln estuary near Alnmouth at low tide on a misty morning.

England, Northumberland, Alnmouth. The Aln estuary near Alnmouth at low tide on a misty morning.

Low tide reveals the rocky coastline of Whitley Sands.

England, North Yorkshire, Runswick Bay. Small coastal village reflected in the wet, low tide, sand of Runswick Bay.

England, North Yorkshire, Runswick Bay. Small coastal village reflected in the wet, low tide, sand of Runswick Bay.

England, North Yorkshire, Runswick Bay. Small coastal village reflected in the wet, low tide, sand of Runswick Bay.

Wales, LLeyn Peninsula, Abersoch. Boats moored at low tide on the vast sandy beach at Abersoch on the LLeyn Peninsula. — Portal Editing Team selected this image for stockbyte.

England, Tyne and Wear, Whitley Bay. Incoming tide engulfs the causeway linking St Mary's Island & lighthouse to the mainland.

England, Tyne and Wear, Whitley Bay. Incoming tide engulfs the causeway linking St Mary's Island & lighthouse to the mainland.

Wales, LLeyn Peninsula, Traeth Llanbedrog. Boat moored at low tide on Llanbedrog Beach on the LLeyn Peninsula.

Wales, LLeyn Peninsula, Traeth Llanbedrog. Boat moored at low tide on Llanbedrog Beach on the LLeyn Peninsula.

England, Lancashire, Morecambe. Fishing boat at low tide moored at Morecambe / Morecambe Bay.

England, Lancashire, Morecambe. Low tide at the seaside resort of Morecambe located on Morecambe Bay.

England, Lancashire, Morecambe. Low tide at the seaside resort of Morecambe located on Morecambe Bay.

England, Lancashire, Morecambe. Mud flats at low tide near the seaside resort of Morecambe located on Morecambe Bay.

England, Lancashire, Morecambe. Low tide at the seaside resort of Morecambe located on Morecambe Bay.

England, Lancashire, Morecambe. Fishing boats at low tide moored at Morecambe / Morecambe Bay.

England, Lancashire, Morecambe. Fishing boats at low tide moored at Morecambe / Morecambe Bay.

England, Lancashire, Morecambe. Fishing boats at low tide moored at Morecambe / Morecambe Bay.

England, Lancashire, Morecambe. Fishing boats at low tide moored at Morecambe / Morecambe Bay.

England, Lancashire, Morecambe. Fishing boats at low tide moored at Morecambe / Morecambe Bay.

England, North Yorkshire, Scarborough. Scarborough North Bay at low tide, with Scarborough Castle in the distance.

England, North Yorkshire, Scarborough. Scarborough North Bay at low tide, with Scarborough Castle in the distance.

England, North Yorkshire, Scarborough. Scarborough North Bay at low tide, with Scarborough Castle in the distance.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide.

England, Northumberland, Alnmouth. Boats on the tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Alnmouth. The tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Alnmouth. Boats on the tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Alnmouth. Boats on the tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Alnmouth. Boats on the tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Alnmouth. Boats on the tidal Aln Estuary at Alnmouth. The hill in the distance is known as Church Hill.

England, Northumberland, Northumberland Heritage Coast. The Pilgrim's Causeway linking the Holy Island of Lindisfarne off the Northumberland Coast with the mainland.

England, Northumberland, Northumberland Heritage Coast. The Pilgrim's Causeway linking the Holy Island of Lindisfarne off the Northumberland Coast with the mainland.

England, Northumberland, Northumberland Heritage Coast. The Pilgrim's Causeway linking the Holy Island of Lindisfarne off the Northumberland Coast with the mainland.

England, Northumberland, Northumberland Heritage Coast. The Pilgrim's Causeway linking the Holy Island of Lindisfarne off the Northumberland Coast with the mainland.

Scotland, Scottish Highlands, Glen Carron. Looking towards Glen Carron from the banks of Loch Carron, a sea loch shown here at low tide.

England, Northumberland, Alnmouth. Retreating tide and driftwood on the beach at Alnmouth.

England, Northumberland, Alnmouth. Retreating tide and driftwood on the sandy beach at Alnmouth.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide, viewed from Cushat Stiel.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide, viewed from Cushat Stiel.

England, Northumberland, Dunstanburgh Castle. Dunstanburgh Castle and surrounding coastline at low tide, viewed from Cushat Stiel.