SÃO BENTO GUIDED TOUR FIELD GUIDE
Terceira Island Beneath the Surface — Lava, Fumaroles and Coastal Pools of São Bento
A focused half-day guided tour that moves from subterranean lava tubes to steaming fumarole fields and volcanic coastal pools, useful for travelers wanting a compact, expert-led look at Terceira’s volcanic landscape.
Terceira Island Beneath the Surface — Lava, Fumaroles and Coastal Pools of São Bento.
This half-day, guided outing on Terceira Island threads together the island’s volcanic essentials: a working dairy farm and its local products, the Gruta do Natal lava tube, the steamy Furnas do Enxofre fumarole field, and, in light of current closures, the Biscoitos Natural Swimming Pools — all presented with interpretation from local guides.
Highlights
Outing Highlights
Gruta do Natal — a thousand-year lava tube
Enter a lava tube formed thousands of years ago and learn the geologic forces that shaped Terceira as you move through solidified flows and underground passages.
Biscoitos Natural Swimming Pools
Explore volcanic rock pools and the rugged natural coast at Biscoitos, a planned substitution during the closure of Algar do Carvão, with free time for photos and shoreline exploration.
Farms, fumaroles and local flavor
Visit a local dairy farm to meet farmers and sample local products, then walk amid the otherworldly steam and smells of Furnas do Enxofre to see volcanic gases still escaping the earth.
What the day feels like
The afternoon in motion
Pick-up is mid-afternoon in Angra do Heroísmo; over roughly three hours you’ll move from shore to subterranean passage to fumarole field, led by local guides who interleave geology and island life. Algar do Carvão is currently closed for construction of a new interpretation center, and the itinerary substitutes a visit to the Biscoitos Natural Swimming Pools when that closure applies.
Suitability
Who it's for
Who this half-day tour suits
Practical planner
Details to review before reserving
Wear comfortable shoes and clothing; bring a windproof or waterproof jacket. If it’s rainy, bring an umbrella to stay dry during the tour.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
Is Algar do Carvão open on this tour?
No. Algar do Carvão is currently closed due to construction of a new interpretation center; the tour substitutes a visit to the Biscoitos Natural Swimming Pools when the closure applies.
How long is the tour?
The tour duration is approximately three hours.
When and where is pick-up?
Pick-up is between 14:00 and 14:15 at your accommodation in Angra do Heroísmo; if you are staying in Praia da Vitória you must come to Angra do Heroísmo for pick-up at Pátio da Alfândega.
What sites are included on the itinerary?
Typical stops include Gruta do Natal, Furnas do Enxofre, a visit to a local dairy farm with product tastings, and — when Algar do Carvão is closed — the Biscoitos Natural Swimming Pools.
What should I wear?
Wear comfortable shoes and clothing and consider a windproof or waterproof jacket; bring an umbrella if rain is expected.
Can the guide change the itinerary on the day?
Yes. Some places can be affected by weather conditions; in that case the guide will offer alternatives at no extra cost, and if there is extra time the guide may add other places to visit.