Describes different kinds of coastlines and the forces that shape them, both natural and manmade.

What are coastlines? -- Shaping coasts -- Changing sea levels -- Climate and wildlife -- Using coasts -- Threatened coasts -- Hawaii: rugged coastline -- Cancun, Mexico: a beach resort -- Great Barrier Reef: coral reef coast -- Milford Haven: industry and pollution -- Venice: threatened by the sea -- Ganges Delta: world's biggest delta -- Ross Ice Shelf: ice-choked coast.