The Sweet Springs Reserve foot bridge at the south end of the Morro Bay, CA estuary, Los Osos, CA, 20 April 2010. Morro Rock can be seen in the background. Photo by Michael “Mike” L. Baird, mike [at} mikebaird d o t com, flickr.bairdphotos.com; Photo by Michael “Mike” L. Baird, mike at mikebaird d o t com, flickr.bairdphotos.com, Canon 5D, Canon EF 100-400mm f4.5-5.6L IS USM Telephoto Zoom Lens with circular polarizer, handheld. To use this photo, which has the most liberal Creative Commons Attribution license possible attached, please see the access, attribution, and commenting guidelines at http://www.flickr.com/people/mikebaird/#credit