UNDERGROUNDTOUR (Full Day Private Tour)
Overview
Unique Tour, for people for you that love to be in the nature, adventurers and explorers.
Terceira Island, as volcanic origin presenting their morphological diversity, maintaining some common geological traits.
We wish to share these several beautiful caves (100%natural - difficult level) not open to the public.
Because the caves it`s in the nature and some with small areas, and we need to cross some farm fields, we recommend: Hiking boots * Pants and Rain jacket
God balance and flexibility
Algar do Carvão Will be closed from 20th of October 2024 till 2026, for renovation.
The only 2 places that are open to public is Volcano Algar do Carvão and Gruta do Natal. This places are only open Fall/winter on Tuesday, Wednesday, Friday and Saturday. In summer every day is open, also closed on expecial occasions as Christmas days or special date.
For children after 12 years old.
What's Included
- Hotel pickup and drop-off
- Private tour
- Use of helmet
- Transport by air-conditioned minivan
- Professional photographer guide
- Local Professional guide
- Food and drinks
- All Fees and Taxes
- Tickets to Algar do Carvão (Close for renovation till 2026)and Gruta do Natal
Meeting and Pickup
We will pick you up and drop you off at any place at the island. -Hotel (name) -Airport: need to let us know the flight number and time you araive/leave -Local accommodation: need to let us know the google map link of the location. - Email
What To Expect
Book Online
Safe & secure Easy breezy Hassle‑free
Azores Expeditions (pass by)
Additional Info
- Confirmation will be received within 48 hours of booking, subject to availability
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Not recommended for travelers with bad knees/back problems
- Recomend hiking boots
- Travelers should have a strong physical fitness level
- Travelers should have a high level of physical fitness
- Specialized infant seats are available
- Children must be accompanied by an adult
- Only for children after 12 years old
- Possible only to do this tour with 4 people only.
Frequently Asked Questions (7)
Q: What is the cancellation policy for the UNDERGROUNDTOUR (Full Day Private Tour)?
Cancellation Policy
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Activity code: C-68965P3
Traveler Photos
Reviews
Average 5.00 out of 5 stars based on 46 traveler reviews collected by City Balloon Tours and partner sites such as Cool Destinations and TripAdvisor
Additional Info
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Frequently Asked Questions (7)
The answers provided below were previously given in response to questions from City Balloon Tours customers.
Filter by:
- For a full refund, you must cancel at least 24 hours before the tour start time.
- If you cancel less than 24 hours before the tour start time, the amount you paid will not be refunded.
- Any changes made less than 24 hours before the tour start time will not be accepted.
- Cut-off times are based on the tour local time (-01).
- Hotel pickup and drop-off.
- Private tour.
- Use of helmet.
- Transport by air-conditioned minivan.
- Professional photographer guide.
- Local Professional guide.
- Food and drinks.
- All Fees and Taxes.
- Tickets to Algar do Carvão (Close for renovation till 2026)and Gruta do Natal.
The minimum age to participate is 12. This tour requires at least one adult to accompany children..
Apr 2025If a date or time is not listed on the calendar, it’s sold out or unavailable for another reason. Support cannot assist further if a date or time is not on the calendar.
If you find a date and time that works for you, book it NOW because things always sell out at this time of year.
Apr 2025Accessibility information for the UNDERGROUNDTOUR (Full Day Private Tour) is as follows:
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Not recommended for travelers with bad knees/back problems
- Recomend hiking boots
- Travelers should have a strong physical fitness level
- Travelers should have a high level of physical fitness
Detailed check-in instructions – including meeting point address, Google map, and parking information – for Sea Screamer Clearwater's Only Speed Boat Dolphin Watching will be included in your confirmation email from City Balloon Tours. Please be sure to double and triple check your email address is correct at checkout so this important email makes its way to you!
Mar 2024Once your refund is processed, it usually shows on your card statement within 5–10 business days. The exact timing depends on your bank or card issuer.
Want it sooner? When you cancel, choose Receive a refund to my wallet instead. The credit is in your Wallet straight away and is applied automatically at checkout on your next booking when you’re signed in with the same email. You can see your balance any time in My Wallet.
If you paid part of your booking with Wallet credit, that part always goes back to your Wallet. Trip protection isn’t refundable.
Oct 2026What's Included
- Hotel pickup and drop-off
- Private tour
- Use of helmet
- Transport by air-conditioned minivan
- Professional photographer guide
- Local Professional guide
- Food and drinks
- All Fees and Taxes
- Tickets to Algar do Carvão (Close for renovation till 2026)and Gruta do Natal
Additional Info
- Confirmation will be received within 48 hours of booking, subject to availability
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Not recommended for travelers with bad knees/back problems
- Recomend hiking boots
- Travelers should have a strong physical fitness level
- Travelers should have a high level of physical fitness
- Specialized infant seats are available
- Children must be accompanied by an adult
- Only for children after 12 years old
- Possible only to do this tour with 4 people only.
