Benagil Cave in 2026: can you still go inside?

The photo everyone has seen — a golden dome of rock, a circular hole in the ceiling, a strip of sand below — is the Algar de Benagil, a sea cave on the coast east of Portimão. It is also the single biggest source of confusion for anyone planning a boat trip on this coast, because what you are allowed to do there has changed.

What changed

For years, small boats motored into the cave and dropped visitors on the sand inside. That is over. Following rockfalls from the cliffs, accidents and ever more crowded water, an edital of the Captain of the Port of Portimão, drawn up with the municipality of Lagoa, the environment agency, the nature conservation institute, the regional tourism board and the regional development commission, has been in force since 13 August 2024. It sets out the following:

• Landing or using the sand inside the cave is prohibited, for private visitors and tour companies alike.
• Reaching the cave by swimming, or with any flotation aid, is prohibited.
• Kayak and paddleboard trips and rentals without a guide are not allowed, since an amendment in July 2025.
• Everyone in the cave must wear a life jacket for the whole visit, passengers and crew alike.
• There are caps on how many boats and kayaks may be inside at once (since July 2025, up to five motorboats and fourteen kayaks or paddleboards) and maximum visit times: two minutes for motorised boats and eight for a group of kayaks or paddleboards.
• Guided paddling runs at one guide kayak per six visitor kayaks.

The caves also sit inside the Recife do Algarve – Pedra do Valado marine natural park. Breaking the rules is expensive: landing on the sand or swimming into the cave carries fines of €2,200 to €44,000, and serious environmental offences can cost up to €216,000.

If you booked a Benagil trip five years ago and remember standing under that ceiling opening, that is why the tour description reads differently now.

So how do people still get inside?

From the water, and you stay on board. Small motorboats and RIB speedboats are narrow enough to pass through the sea-level arch, so you get the view up through the skylight from the boat. Larger vessels such as catamarans and sailing yachts do not always go inside; that depends on the boat and the sea, so check whether the tour description says it enters the cave.

Guided kayak and stand-up paddleboard tours get the longest time inside and the closest look, which is why they remain the paddler’s choice. What they no longer include is setting foot on the sand: nobody disembarks, guided or not. These tours launch from the small beaches near Benagil and Lagoa, a drive of roughly twenty to twenty-five minutes east of Portimão, and they are guided — you get a briefing, a life jacket and someone who knows the swell.

You do not need experience. The distance is short and the guides set a slow pace, but you do need to be able to sit in a kayak for around two hours and paddle steadily.

Swimming in from the neighbouring beach is not a loophole — it is explicitly banned, and according to the edital the beach inside the cave lies entirely within the rockfall zone of the cliffs. If getting inside matters to you, book a guided paddle.

Does that make the boat tours pointless?

No — and this is where a lot of travellers overcorrect. The boat tours are still the better choice for most people, for three reasons.

First, you see far more coastline. A 90-minute boat trip from Portimão passes a dozen other caves, arches and hidden beaches that most visitors never hear about. Benagil is famous, but it is not the only good thing on this coast.

Second, the classic photograph — the one with the light beam coming through the ceiling hole — is taken from the water, looking up. Since nobody stands on the sand any more, that is the only shot available to anyone, and a small boat gets it just as well as a kayak.

Third, boats run in conditions where kayaks cannot. If the swell picks up, paddle tours are cancelled while boat trips continue, although the maritime police can then stop boats from entering the caves.

The honest summary: book the boat if you want the coast and the photograph; book the kayak if being inside the cave — close, quiet and unhurried — is the thing you came for. Plenty of people do both on different days.

Practical notes before you book

Departure point matters. Portimão Marina is the closest large marina to Benagil, so you spend less time in transit and more time at the caves than you would from Albufeira or Vilamoura.

Morning is better. The sea is calmest before midday, the light inside the cave is best mid-morning, and the boats are less crowded. Afternoon trips in July and August can be choppy.

Check the swell, not just the forecast. A sunny day with a two-metre Atlantic swell means cancelled kayak tours. Book early in your holiday so you have a spare day to rebook.