Around 5:30 a.m. we entered the caldera of Genovesa Island. This is all that is left of a shield volcano now flooded by the sea and large enough to accommodate many ships near the rim where the water is shallower to allow anchors to be dropped. Again visits were time limited and also the numbers of people landing at any one time. Once we were on the lava flow there were many more birds than people, they were at every turn and when walking one had to avoid disturbing them. This is the only island where Red-footed Boobies are found. We saw Nazca Booby sitting on eggs or keeping very young chicks protected. There were also lots of juvenile birds. Further on we saw a Galapagos short-eared owl, well camouflaged in a gully. After a couple of hours it was time for lunch on board the ship and afterwards an exploration of Darwin Beach, an area with mangroves and sea water fed lagoons. More birds and sea lions were found here but Darwin never came here.