Isabela and Fernandina Islands are both volcanically active. Isabela is the largest island in the archipelago and is formed by five active shield volcanos, with Wolf Volcano being the highest point in the Galapagos. Fernandina, the youngest and most volcanically active island, last erupted in May 2024.
- Daily Expedition Reports
- 12 Mar 2025
Isabela and Fernandina Islands, 3/12/2025, National Geographic Islander II
- Aboard the National Geographic Islander II
- Galápagos
Salvador Cazar, Naturalist
Salvador Cazar studied biology at the Universidad Nacional Del Sur, Bahía Blanca, in Argentina and at the Catholic University of Ecuador. Between 1988 and 1994, Salvador worked as a naturalist and tour leader for several national and international to...
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Galápagos Escape: An 8-Day Voyage
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5/10/2025
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National Geographic Islander II
Santa Cruz Island
Our day began in the highlands of Santa Cruz with a visit to Los Gemelos, twin volcanic sinkholes nestled in the lush Scalesia forest. Surrounded by endemic flora such as Scalesia trees, lichens, and ferns, the walk along the rim offered remarkable views of the dramatic craters, carved naturally through millennia of volcanic activity and collapse. We also spotted several species of Darwin’s finches and mockingbirds. Located within the island’s humid zone, we visited the Manzanillo Ranch. Here, we had an iconic encounter with giant tortoises in their natural habitat. It was humbling to observe these ancient reptiles grazing calmly among the highland grasses and wallowing in muddy pools. We visited the sugar mill where we got to taste sugarcane juice and enjoy snacks. At the end of lunch, we had a very enjoyable moment with the EcoArte group, who encouraged us to dance to the rhythm of the charango and other Ecuadorian instruments. In the afternoon, we descended to the coastal town of Puerto Ayora to visit the Breeding Center to see baby giant tortoises and learn a little more about conservation in the Galapagos.
5/8/2025
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National Geographic Islander II
Borrero Bay and Bachas Beach, Santa Cruz Island
In the morning, we explored a beautiful mangrove swamp for a Zodiac ride, and later we went kayaking. We found lots of blacktip sharks as well as sea turtles and different types of rays, like the spotted eagle and the golden cow rays. A group of blue-footed boobies started to fish in groups and jumped in the ocean like torpedoes to plunge dive. A diamond ray also passed by and stopped to eat some seashells. In the afternoon, we visited Bachas Beach, an important place for nesting sea turtles. Some guests walked to a lagoon to find shore birds, and other guests went deep-water snorkeling from the rocks. We found parrotfish and yellow-tailed damsel fish.