go out to the barrier islands. On the southside of the barrier islands the water is blue with surf, similiar to Floridas.
Because we have barrier islands, the gulf between them and the shoreline is not a clear blue, but a gray or brown. Not because of pollution, but because of the barrier islands keep the wave's at a minimal, thus water is full of rich nutrients that flow in from the mouth of the Mississippi River. These nutrients are why we have such a great seafood industry (not as strong as it once was, due to foreign imports).
If you want a nice adventure, take one of the boats to the barrier islands. It is not a long ride and it is lovely on the islands.
I may be biased, but I love it here. If you like golf, we have some wonderful courses.
http://www.gulfcoast.org/Attractions/beaches.htmlhttp://www.biloxi.ms.us/Great description from an out of towner.
http://www.thetimesharebeat.com/yourworld/biloxi.htm