If one marine iguana makes you squirm, then seeing hundreds of them at the end of the landing might creep you out. Like all reptiles, they are cold blooded. Before entering the sea, they bask in the sun along the rocks and sand, often raising their body temperature above 96°F. The ritual is repeated after swimming. They also demonstrate an unpleasant habit. They jettison salt through their nose in a cloud of mist similar to a sneeze. Gesundheit!