The beautiful island of Cozumel off the Caribbean coast of Mexico is home to the longest reef structures in this hemisphere. Every day we go out in a boat and dive into the sea about a half mile or less off-shore to a marvelous series of reefs with names like Paradise, Santa Rosa, Punta Tunich, Passo de Sedral, Palancar Horseshoe, San Francisco and many others...a parallel universe with laws and creatures all its own. I am very lucky to visit there!