Booking fee
The booking fee includes the costs of booking your tickets such as charges for payment processing. It also covers the provision of our customer care center for processing your order, and all charges imposed by our suppliers.
* This tour requires at least one of the following per booking: Adult, Senior
The underground caves are one of the most amazing visits to be made on Terceira Island. This tour includes the visit to the Gruta Natal and the Algar do Carvão, also to the famous Furnas de Enxofre and the leisure area Lagoa das Patas.
Tourist guide
Personal accident insurance
Entry to the caves (€15 for both caves)
Departure Point
Pátio da Alfândega, 9700-178 Angra do Heroísmo, Portugal
Departure Point
Jardim José Agostinho, 9700-471 Angra do Heroísmo, Portugal
Lagoa Das Patas, Portugal The first stop of the tour will be at a secret place called Lagoa das Patas. In this place it is possible to visit the stream that originates from Serra de Sta Bárbara, visit the Lagoon and interact with animals such as ducks and some birds. It is a leisure area full of life and nature! 20 minutes
Altares, 9700-000 Angra do Heroísmo, Portugal Here we will visit the famous Gruta Natal and Lagoa do Negro. At this stop, you have the opportunity to walk through lava tunnels made by mother nature and see Lagoa do Negro up close. 25 minutes
Furnas do Enxofre, Porto Judeu, Portugal Furnas do Enxofre is made up of an area that comprises several outlets of aggressive volcanic gases at different temperatures, some quite high. It has a small pedestrian trail that allows you to observe the sulfur smoke up close. 20 minutes
Algar do Carvao, Portugal The visit to the famous cave of Algar do Carvão.
Here we can visit the interior of a volcano, a rare phenomenon in the history of volcanoes worldwide.
We see heaven from the inside of the earth! 30 minutes
Suitable for all physical fitness levels
You can cancel up to 24 hours in advance of the experience for a full refund.
For a full refund, cancel at least 24 hours before the scheduled departure time.
If you cancel less than 24 hours before the experience’s start time, the amount you paid will not be refunded.
Any changes made less than 24 hours before the experience’s start time will not be accepted.
Cut-off times are based on the experience’s local time.
deborah_B
26 Apr 2024
Guides enthusiasm, personality, expertise, and pride in her tour while expressing care and concern for her customers.
Laurie_W
13 Mar 2024
The entire Underground Van Tour with Azores Nature Tours was amazing. James was so knowlegable, kind and considerate. Lagoa da Pata or Duck Lake was beautiful and like a fairy-tale setting. However, Algar do Carvão was the highlight for me. Walking around inside one of only two volcanoes in the world that allows visitors was definitely an experience I will never forget! Besides being overwhelmingly huge it was also so magical. The different lava, the moss, the lagoon and the beautiful spaces created a truly breathtaking adventure.
I would highly recommend this tour with Azores Nature Tours when you visit Terceira Island!
Thank you James!!
Mara_A
21 Feb 2024
Guide was great! They were on time, clean vehicle, and the views fabulous. We saw two underground sites and one above ground, in addition to the vistas.
This tour in
Azores
is organized by
Azores Nature Tours
We always double-check the availability with our local partners for each booking. Even though this is usually a swift process, it can take up to 24 hours. Once this process is completed you will receive your voucher or ticket by email. If our local partner is not able to confirm your booking we will offer you the best possible alternative. If the new date and/or time doesn’t fit your itinerary, we will reimburse the full amount paid.
How great that you want to share your experience! Your feedback helps other travelers to make a better choice.