That question would be like asking "what are the houses like in your country?" The beaches vary by location.
Contrary to what many people may tell you, there is no "best" beach. It all depends on what you think makes a great beach. In my opinion, Boca Chica is the best beach for swimming and water skiing, because it is clear, calm, shallow, and varying degrees of color depending on the time of day and angle of the sun, with a deep blue background beyond the reef and a very light tan colored sand that is not too course, generally flat, and free of debris making it easy on the feet. The surrounding town is somewhat seedy however and on Sundays only, the beach gets really crowded and trashy. By Monday all is cleaned up. Tuesday mornings, the beach is very isolated.
Jim Hinsch JimHinsch@CSI.COM