The Marine Iguanas here are awesome. They are some really hardy creatures. You can find them on the coast west of the air port. To find one just follow the deep grooves in the sand with scratch marks on each side. The groove inevitably leads to a large tail attached to an iguana under a bush. These guys are big so you won't miss them.

You can also climb over the big lava rocks that make up the coast line and find them sunning right near the break. They need to warm up in the sun in order to operate in the cold water (being reptiles and all). Once charged up they scramble into some pretty harsh surf, bounce around on the sharp lava rocks a little and then rudder their way out to the vegies with their tails. Every once in a while they pop their heads up for air and then dive back down to take another pass at the salad bar.