Discovering the Sierra Negra Volcano in Isabela Island

If you’re visiting Ecuador’s Galápagos Islands and craving a hands-on encounter with the archipelago’s volcanic heart, the Sierra Negra Volcano Walking Tour offers a compelling experience. Priced at around $56 and lasting about 4 hours, this guided hike takes you through some of the most impressive volcanic landscapes on Isabela Island. Your day begins bright and early, with hotel pickup—a real convenience—and includes a visit to Volcan Chico before ascending the Sierra Negra itself.
What we love most about this tour is how it combines spectacular scenery with educational insights delivered by knowledgeable guides. The fact that the tour is quite manageable in length makes it accessible for most travelers with moderate fitness levels, and the inclusion of hotel pickup means you won’t need to worry about logistics. Plus, the opportunity to observe flora and fauna thriving amid volcanic terrain is a genuine highlight.
One consideration to keep in mind is that drop-off at the end is not included, so you’ll need to make your way back after the hike. Also, since the tour is weather-dependent, poor conditions might lead to cancellations with a full refund, which is reassuring if you’re planning ahead.
This tour suits naturalists, geology buffs, and adventure lovers alike—anyone eager to see the raw power of volcanoes up close while learning from local guides who bring the landscape to life.
Key Points
- Guided Exploration: Led by knowledgeable local guides with a focus on geology and ecology.
- Convenient Pickup: Hotel pickup from Puerto Villamil makes logistics smooth.
- Volcanic Landscapes: Walk along the rim of the Sierra Negra crater, one of the oldest and largest calderas in the world.
- Wildlife & Flora: Observe the plant and animal life adapted to rugged volcanic terrain.
- Flexible Cancellation: Free cancellation up to 24 hours before the tour.
- Limited Drop-off: End point is at the meeting location; travelers should plan transportation back.
Planning more time in Isabela? We've covered other experiences worth considering.
An In-Depth Look at the Sierra Negra Volcano Tour

Starting Point: Early Morning Pickup from Puerto Villamil
The tour kicks off around 7:30 am, with a pickup from your hotel in Puerto Villamil. This early start is perfect for avoiding the heat and crowds, giving you a more intimate experience with the landscape. The small group size—limited to 15 travelers—ensures you get personalized attention and ample opportunity to ask questions.
First Stop: Volcan Chico – A Snapshot of Recent Activity
Your first destination is the Volcan Chico, positioned northwest of Sierra Negra. Here, the terrain remains pristine, thanks to its location away from the frequent mist that shrouds the southeastern parts of the island. This is a key point: because of its position, Chico often offers clearer views and better visibility, making it an ideal initial stop.
Visitors who have been here note that “Chico Volcano is in perfect condition and can be appreciated by visitors when there is good visibility and sun”. It’s also notable that in October 2005, a week-long eruption covered parts of this volcano with lava—evidence of the island’s ongoing volcanic activity. You won’t get to see the eruption itself, but the recent lava flows and craters tell a story of continuous geological change.
Main Attraction: Sierra Negra – The Oldest and Largest Caldera
The centerpiece of this tour is Sierra Negra, the oldest volcano on Isabela, boasting one of the largest calderas in the world. At roughly 10 miles (16 km) in diameter, walking along its rim offers panoramic views of the rugged landscape below.
Geologists like Nordlie consider Sierra Negra to be a “wider and shallower” volcano, meaning its geological processes are ongoing, with tremors and eruptions occurring over thousands or millions of years—reminding us that the Earth’s crust is always in motion.
The last eruption in 2005, which lasted a week, drastically reshaped parts of the interior, with lava flows that covered the crater floor and raised some areas by over two meters. During the hike, guides often point out these features, giving you a tangible sense of the volcano’s history.
Walking the Rim and Observing the Landscape
The walk along the crater rim is approximately 4 hours, covering moderate terrain with some inclines. The views are breathtaking, offering vistas of the volcanic landscape, crater walls, and distant islands. The terrain can be rocky and uneven, so a sporty outfit, sturdy footwear, and moderate fitness are recommended.
Flora and Fauna in the Volcanic Terrain
Despite the seemingly barren appearance of the volcanic landscape, life flourishes here. You might spot hardy plants that have adapted to the soil and climate, along with unique bird species that thrive in this environment. As one reviewer noted, you will have the chance to observe the flora and fauna that has adapted to this rugged terrain, adding a layer of richness to the experience.
Guides and Educational Insights
One aspect most travelers appreciate is the knowledgeable guides. They explain the geological processes, such as how volcanic activity shapes the landscape and what to expect in future eruptions. As a reviewer mentioned, “Guides were good”, and they seem to enhance the experience with their local expertise.
Practicalities and Considerations
While the tour offers fantastic value, it’s important to remember that drop-off at the end of the hike isn’t included. You’ll need to arrange your own transportation back to your hotel or other destinations. Also, since the tour relies on good weather, poor conditions can lead to cancellation, with a full refund if that happens.
Who Will Love This Tour?

This experience is perfect for adventure travelers who enjoy moderate hikes and want a close-up view of volcanic landscapes. It’s also ideal for those interested in geology or ecology, as guides provide insights about volcanic processes and the flora and fauna that inhabit this unusual environment. The small group size makes it suitable for travelers seeking a more personal, less crowded adventure.
If you’re staying on Isabela Island with some physical fitness, this tour provides a balanced combination of scenic beauty, educational content, and active exploration, making it well worth the moderate effort.
The Sum Up

The Sierra Negra Volcano Walking Tour offers a well-rounded glimpse into the volcanic forces that have shaped Isabela Island. With its impressive caldera, recent eruptions, and resilient plant and animal life, it’s a nature lover’s dream. The added bonus of a knowledgeable guide helps turn a basic hike into a meaningful learning experience.
This tour is best suited for travelers who appreciate geology, wildlife, and scenic vistas, and who are comfortable with moderate walking. The hotel pickup simplifies logistics, and the free cancellation policy adds peace of mind in case weather disrupts plans.
Whether you’re a seasoned hiker or just curious about volcanic activity, this experience provides a memorable, authentic taste of the Galápagos’ volcanic backbone.
FAQ
How long is the walking portion of the tour?
The walk along the crater rim takes approximately 4 hours, covering uneven terrain with some inclines, suitable for those with moderate fitness.
Is hotel drop-off included?
No, the tour includes pickup from your hotel but does not include drop-off at the end, so you’ll need to arrange your transportation afterward.
What should I wear for this tour?
Dressing in sporty, comfortable clothing is recommended. Sturdy footwear for rocky and uneven surfaces is a must.
Can children participate in this tour?
Yes, children are allowed but must be accompanied by an adult. Travelers should have a moderate physical fitness level.
What happens if the weather is bad?
The tour is weather-dependent. If conditions are poor, the tour might be canceled with a full refund or rescheduling offered.
Are the guides knowledgeable?
Yes, reviews highlight that guides are well-informed and bring valuable insights about the volcanic geology and local ecology.
How much walking is involved?
The total walking time is about 4 hours, with an overall duration of around 5 hours including transportation and stops.
The Sierra Negra Volcano Walking Tour provides a meaningful, scenic, and educational adventure for those wanting a deeper connection with Isabela Island’s volcanic landscape. It’s a great choice for travelers looking to combine active exploration with learning, all while enjoying some of the best views the island has to offer.
