Isabela Island forms over 50 per cent of the total land mass in Galapagos. We had the opportunity to explore four visitor sites on Isabela. Even though they are on the same Island and not far from each other, they are very different from one to another. This Island has the best places to see one of the largest populations of marine iguanas, penguins, cormorants, hawks, and finches that are endemic to Galapagos only.