Sulfur Fumaroles Spectacle: Inside the Sierra Negra Volcano Expedition is a captivating adventure that takes you deep into the heart of an active volcano with the 3rd active largest caldera in the world in Isabela Island.

This is a 4h30 exploration perfect for thrill-seekers, nature enthusiasts, and those with a passion for Earth's geological marvels, this expedition promises an adventure like no other.

1. Explore the Unknown: Embark on a journey into the mysterious world beneath the Earth's surface, where you'll encounter otherworldly sulfur fumaroles and lava formations, we will drive along the flanks of the volcano and see the enormous caldera.

2. Surreal Sulfuric Landscapes: Witness surreal landscapes as you navigate through the volcanic terrain, petrified ferns, endemic tree ferns, where billowing sulfuric clouds and steaming vents create an eerie, ethereal atmosphere.

3. Expert Guided: Led by experienced guides, this expedition ensures safety while offering fascinating insights into the geological and scientific wonders of volcanic activity.

4. Up-Close Encounters: Get up close and personal with active sulfur vents, we will start the exploration walking 4 km total inside of the caldera of the volcano, allowing you to witness the raw power and beauty of nature's forces.

5. Observe closer the volcanic rock composed by iron, silica and sulfur and the crystal formation.

After the exploration, we will have a picnic in front of the caldera to eat a delicious lunch included in your tour.

You will be in a group with a tour guide who will share unique insights about the unique volcanology of Galapagos and this active volcano.