Hurricane creates rare extreme waves in California
28 August 2014 Last updated at 11:03 BST
Waves as high as 20ft (6m) in southern California have damaged waterfront homes, knocked out pier pilings and attracted scores of surfers.
The waves are the result of swells produced by Hurricane Marie in the Pacific, 800 miles (1,300km) west of Mexico's Baja California peninsula.
David Eades reports.