Dorset

Dorset lies along England’s south coast, its varied and internationally significant Jurassic Coast shoreline, a UNESCO World Heritage Site spanning 185 million years of geological history, home to a striking variety of islands and coastal features.

Wildlife

Poole Harbour, one of the largest natural harbours in the world, contains numerous islands including Brownsea Island, birthplace of the worldwide Scouting movement in 1907 and now a National Trust nature reserve renowned for its red squirrels, one of the few remaining strongholds for the species in the whole of southern England.

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Alongside Brownsea, Poole Harbour holds a whole scatter of smaller islands, each with its own distinct character. Furzey Island, largely undeveloped and privately managed, hosts oil wellheads as part of the Wytch Farm oilfield, one of the largest onshore oil deposits in Western Europe, its extraction infrastructure carefully screened from view to preserve the harbour’s scenic character. Green Island, Long Island, and Round Island together form an intricate island-studded landscape within the harbour’s sheltered waters, their low, marshy terrain providing valuable habitat for wading birds and wildfowl throughout the year.

Further into the harbour’s quieter reaches, Gigger’s Island, purchased by the Dorset Wildfowlers Association in 2006 and historically part of the boundary of Arne parish, can host as many as 20,000 gulls roosting overnight, while Pergins Island and Drove Island add further variety to this remarkably dense cluster of small islands, each contributing to Poole Harbour’s status as one of the most significant sites in Britain for wading birds, ospreys, and other estuarine wildlife. Ospreys, absent from southern England as a breeding species for over 150 years, have recently returned to nest in the harbour as part of a dedicated reintroduction project, a conservation success story closely tied to the harbour’s network of undisturbed islands.

At the eastern end of the county’s coastline, the dramatic natural arch and chalk stacks of Old Harry Rocks mark the eastern terminus of the Jurassic Coast near Studland, their white chalk formations, geologically continuous with the Needles on the Isle of Wight across the bay, testifying to a time before the sea eroded away the intervening chalk ridge that once connected the two. Dorset’s coastline combines this geological and historical richness with important wildlife habitats throughout, particularly within Poole Harbour, whose sheltered waters and scattered islands together support one of the densest concentrations of estuarine bird life anywhere on the English south coast.

This combination of internationally significant geology, historic island heritage stretching from Scouting’s founding camp to a working oilfield hidden among nature reserves, and rich natural environments makes Dorset’s coastline one of the most celebrated and scientifically important stretches of shoreline anywhere in England, a place where millions of years of earth history and just over a century of modern conservation history sit side by side within a single, compact and endlessly explorable harbour landscape.

The Isle of Portland itself has a naval history to rival Portsmouth’s, having served as a Royal Navy base for well over a century until the fleet’s departure in the 1990s, and continues to host one of the largest artificial harbours in the world, Portland Harbour, built using Portland stone quarried from the island’s own cliffs. Old Harry Rocks take their name from local legend, variously said to commemorate either a pirate who once used the stacks as a hideout or the Devil himself, said to have slept on the rocks on at least one occasion, adding a touch of folklore to a landscape already remarkable for its geology alone.

Landscape

Further along the coast, the tied Isle of Portland, connected to the mainland by the great shingle barrier of Chesil Beach, has long been quarried for its distinctive white Portland stone, used in buildings including St Paul’s Cathedral, the United Nations Headquarters, and Buckingham Palace’s east front. Chesil Beach itself, an 18-mile shingle barrier beach, is one of three major shingle structures of its kind in Britain, its pebbles famously graded in size from fine gravel in the west to large cobbles in the east, a phenomenon so consistent that local fishermen are said to have once been able to judge their position along the beach purely by the size of the stones underfoot even in complete darkness.