The coast of Brazil is indented with a number of almost landlocked bays, forming spacious and accessible harbours.
The coast-line is largely rock-bound and little indented, and throughout the 1200 m.
The coast-line of both main islands is deeply indented and many of the bays and inlets form secure and well-protected harbours, some of which, however, are difficult of access to sailing ships.
The rugged Spanish coast is indented by many fjord-like inlets, especially in the west, where navigation is sometimes difficult and dangerous; but its rivers are comparatively unimportant.
The deeply indented shore of the Gulf of Papua forms the boundary of the subsided area between the two countries, and from it the land stretches out for 200 to 300 m.
