Española Island is the oldest of the Galapagos Islands, as it sits on the southeastern end of the archipelago. The islands are of volcanic origin and are formed because of the activity of what geologists call a hot spot. As the Nazca Plate slides to the southeast over the volcano-producing area, new islands develop. This means that the islands towards the northwest are the youngest, and the ones on the opposite end are the oldest.
National Geographic Endeavour II
On our last day of exploring the islands, the fantastic group of local residents set out on a cool breezy morning to Puerto Egas on Santiago Island. Since it was low tide, we had a wide area to enjoy and explore. Our guests walked among the Sally Lightfoot crabs on the intertidal areas and discovered lava flows that led onto grottoes and species that hid in the folds and cracks of the lava. This has been a very special tour. We have been able to share and exchange knowledge with local fishermen, farmers, representatives of institutions, entrepreneurs and their spouses. This trip has left them with a sense of awe and the urge to keep on protecting the unique islands they inhabit.