Lying along the steep shores of the Channel, at the southernmost point of the county of Dorset, in south-west England, the limestone-rich island of Portland surprises visitors with its wild and unspoiled natural environment, its easy way of life, and its mild seaside climate. The island was the site of the first Viking raid on British soil in 789 and still bears traces of a rich history. One of these is its castle, built in the 16th century, at the request of Henry VIII, to counter the French attempts to invade. The British island welcomes numerous species of migratory birds. It also stands out for its environment combining sheer cliffs, carved by the waves, and a rich biodiversity. This is an unforgettable port of call, where the accent is on tranquillity, elation and discovery.