May 11, 2012 - I first thought it was the composition of the sand, as I was directly comparing Gulf Coast beaches in Northwest Florida such as those in Pensacola, Destin, and Panama City (which all have sugary-white sand), to the beach at South Padre Island, Texas (which has darker beige sand). But then I looked at photos of beaches near Northwest Florida but in the adjacent states of Alabama and Mississippi -- Dauphin Island/Mobile and Gulf Shores in Alabama and Biloxi in Mississippi. Those beaches have the...