Catamaran, speedboat or sailing boat — which one is for you?

Search for a boat trip from Portimão and you will be offered three quite different things at once: a RIB speedboat, a catamaran and a sailing yacht. They visit the same cliffs. They are not remotely the same day out, and the difference matters more than the price does.

Here is what each one is genuinely good at, and — more usefully — what each one cannot do.

The speedboat or RIB

What it is: a rigid inflatable or small open motorboat, ten to twenty passengers, bench seating, no shade.

What it is good at: getting close. These are the only boats narrow enough to slip through the sea-level arch into the Benagil cave, so if being inside the cave is the point of the trip, this is the hull you want. They also cover more coastline per hour than anything else, which is why the standard 90-minute cave tour is a RIB.

Prices in our own Portimão catalogue run from about €11 to €50 per person, with a middle of roughly €34, and typical durations of 1.5 to 2.5 hours. It is the cheapest way onto the water here by a clear margin.

What it cannot do: be comfortable. You sit on a hard bench, you get wet, there is no shade and usually no toilet. Every wave arrives through your spine. This is the hull most likely to make someone in your group seasick, and it is the wrong choice with a bad back, in late pregnancy, or with a nervous small child. Some operators set a minimum age for exactly this reason — check before you book rather than at the pontoon.

The catamaran

What it is: two hulls, a wide deck between them, forty to a hundred passengers, shade, seating above and below, toilets, usually a bar.

What it is good at: staying flat. The width across the hulls is the single most important number for stability, and a catamaran in normal Algarve conditions barely moves. That makes it the default choice for families, for mixed-age groups, and for anyone who has had a bad time on a boat before. Most cave catamarans build in a swim stop, which is a real advantage — you get an hour in the water rather than only looking at it.

Per-person prices in our catalogue run from about €10 to €55, clustering around €31, for typically two to three hours.

What it cannot do: enter the cave. A catamaran is far too wide for the Benagil arch. You will see the entrance from the water and the operator may or may not run a tender in. If a listing implies otherwise, read it twice. You also share the day with a lot of other people, and the pace is a cruise rather than a tour.

One honest note on seasickness, because catamarans get oversold on this. The wide beam genuinely helps, but experienced sailors will tell you it is not a guarantee — the motion is different rather than absent, and sea state matters at least as much as hull shape. Sit outside on an upper deck where you can see the horizon, take a morning departure, and treat medication as the backup rather than the boat.

The sailing boat

What it is: a monohull yacht or a small schooner, typically eight to thirty passengers, with the engine off for at least part of the trip.

What it is good at: atmosphere. When the sails go up and the engine stops, the noise disappears and the coast looks entirely different. It is the best hull for a sunset trip by a distance, and the best for a couple. Trips tend to be longer and less rushed — two and a half to three and a half hours is normal — and there is often food and drink included rather than sold.

Per-person prices here range from about €19 to €98, with a middle around €57 — the most expensive of the three per head.

What it cannot do: go into the cave, again — the draft and the beam both rule it out. It is also the most weather-dependent of the three. No wind means motoring, which is the version nobody books it for; too much wind and it heels, which some passengers find thrilling and others find alarming. If anyone in your party would be unhappy sitting on a deck at an angle, this is not your boat.

Which one for which traveller

“I want to be inside the Benagil cave.” Speedboat, or a guided kayak. Nothing else fits through the arch.

“Somebody in the group gets seasick.” Catamaran, morning departure, outside on the top deck.

“We have young children.” Catamaran. Shade, a toilet, room to move, a swim stop.

“It’s our anniversary.” Sailing boat at sunset, or a private charter.

“We want to see as much coast as possible in two hours.” Speedboat.

“We’re on a budget.” Speedboat, and book an early-morning departure — the sunrise and early slots are consistently the cheapest on this coast.

“We want to swim and eat.” Catamaran with a swim stop, four hours or more.

The thing that matters more than the hull

Where the boat leaves from. Portimão’s marina is the closest large harbour to the Benagil caves, so a tour departing here spends more of its time at the cliffs and less of it in transit. The same nominal 2.5-hour tour from Albufeira or Vilamoura gives you noticeably less coastline for the same money, because a chunk of it is spent getting to the interesting part and back.

If you are comparing two listings and one leaves from Portimão and the other from further east, that difference is usually worth more than ten euros of price gap.

Two things to check before you pay

Whether the price is per person or per group. Shared tours quote per person. Private charters quote per group — anywhere from about €200 to €2,000 depending on the boat and the length — and a group price that looks alarming can work out cheaper per head than six individual tickets. Read the label, not just the number.

What happens if it is cancelled. Operators on this coast cancel for swell, not for cloud, and kayaks and RIBs go first. Most allow free cancellation up to 24 hours ahead, so booking early costs nothing and secures the calm morning slot that sells out first in July and August.

The short version

If the cave is the point, take a speedboat. If comfort is the point, take a catamaran. If the evening is the point, take a sail. Nobody regrets the boat they chose for the right reason — the regret comes from booking the cheap RIB with a seasick partner, or the beautiful catamaran expecting to end up inside the cave.