About This Tour
The underground caves are one of the most amazing visits to take on Terceira Island. This tour includes the passage through the Christmas Cave and the Carvão Algar, also includes the passage through the famous Sulfur Furnas and the leisure area Lagoa das Patas. IMPORTANT INFORMATION: The Algar do Carvão is temporarily closed for reconstruction works of the museum, instead of the Algar do Carvão we will visit the natural pools of the Biscoitos.
Final price may vary. Check availability for exact pricing.
Photo Gallery
Final price may vary. Check availability for exact pricing.
TopTours Insights
Underground Van Tour (Half Day) | Terceira Island
Let TopTours AI read the full tour details and generate a short insight about who this experience is best for and what stands out.
Calculating tour characteristics...
What's Included
What's Not Included
Additional Information
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Tour Operator
Azores Nature Tours
Official supplier for this experience. Bookings are handled directly through Viator with verified partners.
Viator Certified
Trusted local operator
Are you the tour operator?
Get up to 15× more visibility by linking your tours together. Show travelers all your offerings on each tour page. Just one extra booking per month covers the cost. Starting at just $4.99/month.
Guest Ratings
Total review count and overall rating based on Viator and Tripadvisor reviews
Based on 141 verified reviews
Average rating
Frequently Asked Questions
Common questions about Underground Van Tour (Half Day) | Terceira Island
Who operates this experience?
This experience is operated by Azores Nature Tours, a local adventure provider.
What's included?
This tour includes Pick up & drop off, Personal Accident Insurance, and Air-conditioned vehicle. Additional amenities and services are included. All inclusions are provided by the tour operator.
How long does this experience take?
The experience lasts approximately 3 hours, giving you time to fully enjoy your chosen activity.
Can I cancel this tour?
Yes, you can cancel up to 24 hours before the scheduled departure time for a full refund.
What should I bring?
Bring comfortable walking or hiking shoes, a water bottle, and appropriate clothing for the activity level. Safety equipment is provided as needed.
Will I receive instant confirmation?
Yes, you'll receive instant confirmation when you book.
Is this tour worth it?
Yes, this experience has a 4.9-star rating based on 141+ reviews, making it a highly rated option.
What to expect on this tour?
This adventure experience lasts approximately 3 hours and includes all necessary equipment and guidance. You'll have access to Pick up & drop off and more.
What fitness level is required?
This adventure activity requires a moderate level of physical fitness. Please review the tour details for specific requirements, or contact the operator if you have concerns about your fitness level.
Ready to Go?
Book Underground Van Tour (Half Day) | Terceira Island
Secure your spot instantly through Viator and receive flexible cancellation options plus verified customer support.
Trusted partner • Instant confirmation