From Site:
This "Marine Protected Areas" KML file was produced through a collaborative effort between some of the biggest names in ocean conservation. On opening this KML and zooming in, you will see the locations of marine protected areas illustrated by a placemark icon. Clicking on these icons provides you with rich textual and graphical information about the specific location. Zooming in further will show the boundaries of the diverse and precious sites.
[via: http://earth.google.com]
