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.
Photo Gallery
Tour Analysis
Tour Characteristics
Analyze this tour to extract its characteristics (adventure level, structure, food importance, etc.). This is a one-time analysis that enables personalized matching.
One-time analysis • Enables preference matching
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
Guest Ratings
Based on 140 verified reviews
Average rating
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
