Watch giant tortoises, be nose to nose with a seafaring lizard, and snorkel with a group of penguins on the equator. And, as Darwin came to appreciate, neighbouring islands have sub-species that have developed differently, leading to one of the most important, world-changing discoveries ever known: evolution. Scientifically, scenically and sensorially spectacular.
The best way to explore is by boat, try to go for a week at least.