article_snippet: southern Britain was a series of islands linked by waterways, channels and swollen rivers, and that Stonehenge was effectively located on  coast.
article_snippet: Robert John Langdon says southern Britain was a series of islands linked by waterways, channels and swollen rivers, and that Stonehenge was effectively located on the coast.
article_snippet: Mr Langdon says that southern Britain was a series of islands linked by waterways, channels and swollen rivers, and that Stonehenge was effectively located on the coast.
article_snippet: The expert claims southern Britain Britain was a series of islands linked by waterways, channels and swollen rivers, and that Stonehenge (pictured) was effectively located on the coast .
highlights_snippet: Believes southern Britain was a series of islands linked by waterways, channels and swollen rivers, and that Stonehenge was  located on  coast .