Probably the iconic Galapagos critter is the tortoise. Quite honestly, there aren't all that many in the wild, but there are a bunch of huge programs trying to reintroduce them to various places. The other critters people think of are the iguanas. There are plenty of them, especially marine iguanas. Sea lions are everywhere and almost every rocky shore has Sally Lightfoot crabs. The photography is great. They just don't move around very much.