Fernandina has never had an introduced species take hold, which makes it as close to untouched as anywhere in the islands. Its single visitor site, Punta Espinosa, packs in more marine iguanas than you will see anywhere else on earth.
Vast piled colonies of marine iguanas, the only sea-going lizard on earth, sprawled across the black lava in their hundreds.
Found only around Fernandina and western Isabela, having lost the ability to fly in the absence of any predators on land.
Penguins fish just offshore while Galapagos hawks patrol overhead, often perching low enough for a close look.
La Cumbre volcano erupts every few years, so much of the island's black lava is recent enough to still look freshly cooled.
Amazon wildlife on the mainland, then eight days cruising the islands.
A tented lodge in the highlands, with a different excursion each day.
A week at sea, then volcanoes and rainforest on mainland Costa Rica.
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