Britain's foremost naval station, Portsmouth occupies the bulbous peninsula of Portsea Island, on the eastern flank of a huge, easily defended harbour. The ancient Romans raised a fortress on the northernmost edge of this inlet, and a small port developed during the Norman era, but this strategic location wasn't fully exploited until Tudor times, when Henry VII established the world's first dry dock here and made Portsmouth a royal dockyard. It has flourished ever since and nowadays Portsmouth is a large industrialized city, its harbour clogged with naval frigates, ferries bound for the continent or the Isle of Wight, and swarms of dredgers and tugs.
Old Portsmouth, based around the original harbour, preserves some Georgian and a little Tudor character. East of here is Southsea , a residential suburb of terraces with a resort strewn along its shingle beach, where a mass of B&Bs face stoic naval monuments.