We have traveled overnight around the northern end of Isabela Island. 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 iguanas and foraging green sea turtles. During lunch, we backtracked north and after a coastal exploration aboard our Zodiacs at Punta Vicente Roca, we proceeded across the Equatorial Line during a sunset wine tasting of South American wines.