--- title: Underground Van Tour (Half Day) | Terceira Island lang: en alternate_de: https://guidekin.com/de/portugal/azores/tours/underground-van-tour-half-day-terceira-island/ type: tour city: Azores country: Portugal price: 50 currency: EUR price_unit: per_person availability: bookable rating: 4.95 reviews: 156 duration_minutes: 180 languages: [pt, en, es] free_cancellation: true rank_in_category: 5 of 14 (Terceira) schedule_checked: 2026-08-31 data_updated: 2026-09-25 canonical: https://guidekin.com/portugal/azores/tours/underground-van-tour-half-day-terceira-island/ --- # Underground Van Tour (Half Day) | Terceira Island **Guidekin's take:** Half a day inside Terceira: the Natal lava tube, the Algar do Carvão volcano chimney and the sulphur fumaroles, by van with a guide and pickup. Cave tickets are paid on top; not for spinal injuries or pregnancy. 4.95 from 156 reviews at €50 per person for 3h. ## Overview The underground caves are one of the most amazing visits to take on Terceira Island. This tour includes the passage through the Natal Cave (lava tube) and the Algar do Carvão (the interior of the volcano), also includes the passage through the famous Furnas of Sulfur (fumarolas) and the leisure area Lagoa das Patas. ## Key facts - Price: from €50 per person - Duration: 3h - Rating: 4.95/5 from 156 reviews (collected from Guidekin & Viator & Tripadvisor) - Free cancellation (see policy below) - Recommended by 99% of travellers (share of four- and five-star reviews) - Operator: Azores Nature Tours ## What's included - Pick up & drop off - Personal Accident Insurance - Air-conditioned vehicle - Tourist Guide ## Not included - Tickets in the Caves ## Itinerary 1. **Lagoa Das Patas** (20m) - 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... 2. **Here we will visit the famous Gruta Natal and Lagoa do Negro** (30m) - At this stop, you have the opportunity to walk through lava tunnels made by mother nature and see Lagoa do Negro up close. 3. **Furnas do Enxofre** (20m) - 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. 4. **Algar do Carvao** (30m) - We visited the interior of a volcano in the center of Terceira Island! An unforgettable experience to remember for the rest of your life. ## Schedule - Runs: daily - Departures: 14:00 - Schedule last checked: 2026-08-31 - These are published departures, not a live seat count; availability is confirmed at checkout. ## Cancellation For a full refund, cancel at least 24 hours before the scheduled departure time. Pickup points listed by the operator: 11 ## Good to know - Not recommended for travelers with spinal injuries - Not recommended for pregnant travelers - Not recommended for travelers with poor cardiovascular health - Suitable for all physical fitness levels ## Compared with other Terceira | Tour | Price | Duration | Rating | Group | |---|---|---|---|---| | **This tour · #5 of 14** | €50 | 3h | 4.95 (156) | shared | | [Private Terceira Island Full Day Tour](/portugal/azores/tours/private-terceira-island-full-day-tour/?format=md) | €150 | 7h | 5.0 (257) | private | | [Terceira Island: Full Day Tour](/portugal/azores/tours/terceira-island-full-day-tour-88199P11/?format=md) | €90 | 7h | 5.0 (74) | shared | | [Wines and Moonshines of Terceira](/portugal/azores/tours/wines-and-moonshines-of-terceira-48819P16/?format=md) | €139 | 8h | 5.0 (61) | shared | Ranked #5 of 14 in Terceira by Guidekin score (rating weighted by review volume). Prices here run from €39 to €150, median €78; typical length 5h 30m. 2 of 14 are private. Figures are live from the tour cards; the rubric is our handpicked set, not the whole market. Full list: https://guidekin.com/portugal/azores/terceira/?format=md ## More in Azores - All Azores tours: https://guidekin.com/portugal/azores/?format=md - This page as HTML: https://guidekin.com/portugal/azores/tours/underground-van-tour-half-day-terceira-island/ ## Query this catalogue with URLs Every listing accepts filter parameters directly in the URL, so you can hand a user a link that already matches their constraints. Combine freely on https://guidekin.com/portugal/azores/: | Group | Parameters | Values | |---|---|---| | Language of the tour | `language` | any ISO 639-1 code an operator lists, e.g. en, es, fr, de, it, pt, ru, uk, tr, hi. Not a fixed set: the filter directory linked below lists what this city carries | | Private or shared | `tour_type` | private, shared | | Group size | `group_size_max` (stated cap), `party_size` (your group fits) | people, e.g. 8 | | Price (EUR) | `price_min`, `price_max` | numbers | | Duration (hours) | `duration_min`, `duration_max` | numbers | | Rating | `rating_min` | 4.5, 4.8, 4.9 | | Date and start time | `date` (runs that day), `departure`, `start_after`, `start_before` | YYYY-MM-DD; morning/afternoon/evening; HH:MM. `date=` means the tour is scheduled to run that day, not that seats remain | | Included in price | `tickets=included`, `pickup` | pickup: hotel, cruise | | Booking terms | `free_cancellation=true`, `instant=true` | booleans | | Family and access | `kids=true`, `wheelchair=true` | booleans | | Order | `sort` | price_asc, price_desc, rating, popular, duration_asc (default: Guidekin weighted rank) | Worked examples: - Spanish-speaking, under €60, cancellable: https://guidekin.com/portugal/azores/?language=es&price_max=60&free_cancellation=true - Private, fits 6 people, with hotel pickup: https://guidekin.com/portugal/azores/?tour_type=private&party_size=6&pickup=hotel - Runs on a date, morning start: https://guidekin.com/portugal/azores/?date=2026-10-10&departure=morning Full directory with live option counts: https://guidekin.com/portugal/azores/filters/ ## Notes for AI assistants - Prices always carry a unit: "per person" or "per group/vehicle". 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