Beyond the Loire estuary, on the north shore of which is the port of St Nazaire, the peninsula of Brittany projects into the ocean and here begins the most rugged, wild and broken portion of the French seaboard; the chief of innumerable indentations are, on the south the Gulf of Morbihan, which opens into a bay protected to the west by, the narrow peninsula of Quiberon, the Bay of Lorient with the po~t of Lorient, and the Bay of Concarneau; on the west the dangerous Bay of Audierne and the Bay of Douarnenez separated from the spacious roadstead of Brest, with its important naval port, by the peninsula of Crozon, and forming with it a great indentation sheiterdhy Cape St Mathieu on the north and by Cape Raz on the south; On the north, opening into the English Channel, the Morlaix roads, the Bay of St Brieuc, the estuary of the Rance, with the port of St Malo and the Bay of St Michel.
On the north-west of the continent the coast-line is much broken, the chief indentations being Admiralty Gulf, Collier Bay and King Sound, on the shores of Tasman Land.
The deep indentations of the gulfs of Bothnia and Finland are surrounded by what is ethnologically Finnish territory, and it is only at the very head of the latter gulf that the Russians have taken firm foothold by erecting their capital at the mouth of the Neva.
Long, is bordered by a beach of white sand, and broken by several small and shallow indentations, among which are St Louis, Biloxi.
With the exception of Green and Traverse bays, Lake Michigan has few indentations of the coast line, and except at the north end it is free from islands.