Today we visited Santa Cruz, the second largest island in the archipelago and the home to 25,000 people. During the morning we visited the Charles Darwin Research Station, where our guests learned all about the conservation work they have maintained since 1960. Afterward we explored the town of Puerto Ayora for some local culture and shopping. Later in the day we explored the highlands of the island, where our guests enjoyed observing the Santa Cruz giant tortoises (Geochelone porteri) at Manzanillo reserve.