Big Dos Amigos features a submerged archway that has been likened to an aquatic
cathedral. "Light dances off every surface, and the mass of fish and sharks
tease and tantalize the eye . . ." wrote one recent visitor. To the south sits
Small Dos Amigos, where many species of rays glide through the midwater, and
the snappers are so large you barely notice the whitetip reef sharks.