Speedboat from Lagos to Benagil: What Two Hours on a RIB Really Means

The operator of the most-booked Benagil trip from Lagos describes it like this: “More adventure, more fun. Take a speedboat tour from Lagos to the famous Benagil Caves. Discover hidden beaches, secret grottoes and impressive rock stacks together with a guide.”

That sounds like a matter of taste: if you like it sporty, take the speedboat; if you like it relaxed, take the catamaran. It isn’t. From Lagos, the boat type is a consequence of distance. And what that means on board is in no tour description.

Whether the trip is worth it at all is a separate question – it’s covered in From Lagos to Benagil. This is only about the boat.

The maths that decide the boat type

Benagil lies around 35 kilometres east of Lagos, roughly 11 nautical miles by water. And Lagos is not the closest harbour to it – Portimão is considerably nearer, as is Carvoeiro. Whoever sets off from Lagos always books the approach along with it.

Now the times from our listings: “From Lagos: Benagil Caves Speedboat Adventure” costs €40 and takes 2 hours. The “Round trip to the caves of Benagil and Carvoeiro” costs €36 and also takes 2 hours. Those two hours include the outbound leg and the return.

A RIB – a rigid inflatable boat – covers the distance in just over half an hour each way. That leaves just under an hour for the coast. A sailing catamaran runs at eight to ten knots and would need roughly double the time. You can see it directly in the listings: the catamaran version to Benagil from Lagos is listed at 2.5 hours, not two – and the extra half hour goes into the crossing, not the destination.

For comparison: a trip to Ponta da Piedade, the landmark of Lagos, starts ten boat-minutes behind the marina, costs from €16 and takes 75 minutes. There the boat is against the rock almost the whole time. On the Benagil route it’s underway most of the time.

What two hours on a RIB mean physically

A RIB is built to be fast and agile, not to be comfortable. Specifically:

• You sit either straddling a padded saddle or directly on the buoyancy tube at the edge. Both have a handle, and you’ll need it.
• Underway, the hull slams over every wave. That’s not rocking, those are shocks that go through your spine. You absorb them with your legs.
• Spray and wind are part of the deal. On a 40-minute return leg you get wet, even in sunshine.
• There’s usually no shade. Sun protection and headwear aren’t a luxury.
• There’s usually no toilet on board. Two hours without one is the reality.
• There’s barely any room for bags. Anything you bring should fit in a waterproof pouch.

That’s not a shortcoming of the operators. That’s the design. Once you know it, it stops being annoying.

One Lagos peculiarity adds to this: in summer, the northwest wind, the Nortada, picks up over the western Algarve in the late morning. On the way east you have it at an angle from behind, on the way back west it’s in your face. On afternoon trips the second half is therefore often the harder one. The first departure of the day is the calmest.

What you get for it

Three things, and they’re real. First, the crossing at all – without a speedboat, Benagil from Lagos isn’t doable in half a morning. Second, closeness to the rock: a RIB has little draft and turns on the spot, reaching walls and entrances a catamaran never approaches. Third, the ride itself, which for many guests is the experience, not just the way there.

Honest about the route: the first minutes out of Marina de Lagos head east along the flat Meia Praia. No rock, no arch. The coast only turns dramatic behind Alvor and Portimão, and really good from Carvoeiro onward. The spectacular cliffs of Lagos itself lie in the other direction.

Two minutes, after ninety minutes underway

Since 13 August 2024, an edict from the Portimão harbour authority has applied to the Benagil cave. For motorboats that means: entry through the western opening, a maximum of two minutes inside, no disembarking onto the sand, no swimming in. More on the rules is in the Benagil article.

Do the honest maths: around an hour of pure travel time, about fifty minutes of coast, grottoes and beaches – and two minutes in the cave you came for. Just under two per cent of the tour.

Even so: 3,248 reviews at 4.8 stars are no accident. People come back satisfied, but not because of the two minutes – because of the ride. Knowing this in advance means booking the right thing.

Who this isn’t for

• Back and spine. The impacts are hard. Many operators explicitly advise against it for back problems – what applies in a given case is on the booking page.
• Pregnancy. Same picture: most operators advise against it. Check the booking page beforehand.
• Very young children. We won’t invent a minimum age – operators set different limits, and what applies is on the respective booking page.
• Anyone who gets seasick easily. Two hours without a stop is a long test. What helps is a question for the pharmacy.
• Anyone wanting to take photos. No good pictures come out of a bouncing RIB underway. Photos happen when stationary.

The two alternatives

Anyone who’d rather spend the time at the rock than en route stays in Lagos. The boat trips to Ponta da Piedade – 71 offers, from €16, together over 41,000 reviews – take you through a dozen grottoes you actually enter, in just over an hour. Which boat type fits where is explained in Which boat really gets into the grottoes?

Anyone wanting it calmer takes a catamaran from €23.20: shade, seating, a relaxed ride – but no tight passages. And anyone wanting to be in the cave for longer than two minutes needs a guided kayak from €27.30 – though that starts in Benagil itself, not Lagos.

The speedboat isn’t a bad choice – it’s the only one that makes this route possible in two hours. You should just know that for it, you hold on for two hours.