---
title: Cave Tour in Terceira
lang: en
alternate_de: https://guidekin.com/de/portugal/azores/tours/cave-tour-in-terceira/
type: tour
city: Azores
country: Portugal
price: 45
currency: EUR
price_unit: per_person
availability: bookable
rating: 4.79
reviews: 48
duration_minutes: 180
duration_max_minutes: 240
languages: [pt, en, es]
free_cancellation: "true"
rank_in_category: 17 of 19 (Terceira)
schedule_checked: 2026-08-31
data_updated: 2026-10-12
canonical: https://guidekin.com/portugal/azores/tours/cave-tour-in-terceira/
---

# Cave Tour in Terceira

**Guidekin's take:** A guided visit to Terceira's volcanic underground with hotel pickup: the Algar do Carvão natural monument, the Christmas cave and the sulphur fumaroles. While Algar do Carvão is closed the operator shows a lava tube instead; the Gruta do Natal entry is extra. 4.79 from 48 reviews at €45 per person.

In our comparison: #17 of 19 in Terceira, by rating weighted by review volume (table below).

## Overview

ATT: Algar do Carvão will be closed from Oct 19th 2024 to unkown date as of now, during this period we will be showing a hidden lava tube instead.

On this tour you will visit Algar do Carvão which is classified as a Natural Monument, the Christmas cave, the smoke holes (furnas do enxofre).

## Before you book

- Hotel pickup: from 7 pickup points
- Min. 2 to book: not for solo travellers
- Starts 14:00: one departure a day
- Strollers OK: infants accepted
- Children from €23: ages 2 to 12

**Pickup:** Hotel pickup from 7 pickup points

## Key facts

- Price: from €45 per person for the Grutas option; other options up to €75
- Duration: 3h–4h
- Rating: 4.79/5 from 48 reviews (collected from Guidekin & Viator & Tripadvisor)
- Free cancellation (see policy below)
- Operator: Pro Island Tour
- Minimum booking: 2 travellers at this price
- Group: Shared tour · private option available
- Guide languages: Portuguese, English, Spanish
- Start times: 14:00
- Booking: Instant confirmation, mobile ticket
- Price checked on Viator: 2026-08-31

## Reviews

4.79 from 48 ratings on Guidekin, Viator & Tripadvisor.
96% of ratings with a star breakdown are 4 or 5 stars: 46 of 48.

- 5 stars: 44 (92%)
- 4 stars: 2 (4%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 2 (4%)

### What reviewers say

Reviewers praise the guides' knowledge and the variety of caves; cave admission requires separate payment.

**Praised:**
- Guides explain cave geology, island history and local culture
- Varied caves and lava tubes, including less visited sites
- Friendly, patient guiding with time to explore and ask questions
- Routes tailored to the group's interests and the weather

**Complaints:**
- Cave admission has to be paid for separately
- Wet, dripping caves call for a jacket or rain gear

Written by Guidekin from the 42 most recent English reviews on Viator & Tripadvisor (2018-06-18 to 2026-08-31); last checked 2026-10-07.

## Tour options

Prices are the operator's current list price for two travellers (whole euros); options sold only to bigger parties say so; pick the option on the booking page.

| Option | Price | Guide languages | Details |
|---|---|---|---|
| Grutas | €45 / person (for 2+ people) | Portuguese, English, Spanish | Pickup included |
| Grutas Solo Traveler | €65 / person | Portuguese, English, Spanish | Pickup included |
| Grutas Private | €75 / person | Portuguese, English, Spanish | Pickup included |

## What's included

- Hotel pickup and drop-off
- Will pick up anywhere as long as specified

## Not included

- Entrance at the Gruta do Natal

## Itinerary

1. **Gruta do Natal** (30m) - It is a very extensive geological formation, resulting from the formation of a lava tube in the interior of the island, included in the Serra de Santa Bárbara and Mistérios Negros Natural Forest Reserve.
2. **Furnas do Enxofre** (35m) - is located in the parish of Porto Judeu, in the Municipality of Angra do Heroísmo, on the island of Terceira, in the Azores. They constitute a fumarolic field, that is, an area that comprises several outlets of aggressive volcanic gases, at different temperatures, some quite...
3. **Biscoitos** (25m) - We will go into a lava tube that is not open for turism so it is all natural, very few people know where it is. you have the option to go in or not.

## 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: 7

## Good to know

- Specialized infant seats are available
- Service animals allowed
- Not recommended for travelers with poor cardiovascular health
- Travelers should have at least a moderate level of physical fitness
- Children must be accompanied by an adult
- * Algar do Carvão will be closed from Oct 19th 2024 to unknown date as of now
- During this period we will be showing a hidden lava tube instead. *

Booking asks for: dates of birth, arrival flight or ship details

## Compared with other Terceira

| Tour | Price | Duration | Rating | Group |
|---|---|---|---|---|
| **This tour · #17 of 19** | €45 | 3h–4h | 4.79 (48) | 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 (75) | shared |
| [Wines and Moonshines of Terceira](/portugal/azores/tours/wines-and-moonshines-of-terceira-48819P16/?format=md) | €139 | 8h | 5.0 (62) | shared |

Ranked #17 of 19 in Terceira by Guidekin score (rating weighted by review volume). Prices here run from €39 to €160, median €85; typical length 5h. 3 of 19 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/cave-tour-in-terceira/

Filters, the full catalogue and the URL contract for this city: https://guidekin.com/portugal/azores/?format=md