National Geographic Endeavour II traveled overnight around Isabela Island by its northern end. As first light broke, we crossed Banks Bay as we neared the anchorage of Punta Espinoza at Fernandina Island. After a walk on lava flows that are hundreds of years old, we snorkeled across the bay with swimming Galapagos marine iguanas and foraging green sea turtles. During lunchtime we backtracked north, and after a coastal exploration aboard our Zodiacs at Punta Vicente Roca, we proceeded across the Equatorial Line while enjoying a sunset wine tasting of South American wines.