Lagoons appear after you crest the dunes. This full day Santo Amaro tour is one of the best ways to see the quieter side of Lençóis Maranhenses, with a dune 4×4 ride and a guided walk through lagoons.

I like the variety, from Lagoa do Peixe to lagoons that swap with the season. I also love that the circuit includes a lunch break and a sunset pause, so you get more than one “wow” moment without feeling like a sprint.

The main drawback is that you will plan your own lunch and cover a small extra R$10 municipal tourism tax, since meals are not included.

Key things I found most useful

• 4×4 dune ride to start: you jump straight into the scenery with a short ride over the sand (about 10 to 15 minutes).
• Seasonal lagoon selection: Lagoa do Peixe, Lagoa da Andorinha, and Lagoa da Gaivota are common stops, but the order can change by season.
• Full-day rhythm: walk, lunch around 1 pm, more lagoon time, then a sunset viewing stop depending on weather.
• National Park access included: the environmental fee is part of your tour price, and you get a guide plus lagoon walking time.
• Good fit for small groups: price is per group up to 5, and private group tours are available.

Santo Amaro Lagoons: why this full day feels worth it

If you are doing Lençóis Maranhenses, Santo Amaro is the side that feels more like a long walk in a natural wonder, not a quick photo stop. The day is built around sand dunes, shallow lagoons, and time with a guide who keeps the route moving.

What I like best is the mix of motion and stillness. You get a short 4×4 push through the dunes to reach the first lagoons, then you slow down for walking and viewing. And because the stops can change by season, you are not seeing the same exact “postcard set” every day.

You should also know what you are signing up for: it is a true full day outdoors. If you want a relaxed half-day with zero walking, this probably will not match your style.

Getting from Barreirinhas to Santo Amaro without losing your morning

This tour runs on a tight schedule, because Santo Amaro takes time to reach from Barreirinhas. Boarding in Barreirinhas is typically at 08:00 am, and boarding in Santo Amaro is at 08:05 am.

If you are staying in Barreirinhas, the transfer timing depends on where your hotel or pousada is. Departure from Barreirinhas to Santo Amaro starts around 7:45 am and can run until roughly 8:45 am. Pick up is optional, and they say pick up service runs from about 7:30 am to 8:40 am, as long as you share your Pousada.

A practical tip: pick a breakfast plan that does not depend on a precise minute. The stated pick up time is approximate, so build in buffer time so you are not rushing, coffee in hand, to the front door.

After the tour, your return to Barreirinhas is estimated around 7:30 pm. That is a long day, but it also means you are getting more than one light moment for the lagoons.

The short 4×4 dune ride: quick thrills before the walking starts

Once you arrive in Santo Amaro, you start with a short ride in a 4×4 vehicle over the dunes. It is not a long transfer, more like a starter course, lasting about 10 to 15 minutes.

Why it matters: in Lençóis Maranhenses, the dunes are not just “background.” They shape how you reach the lagoons and how the day flows. This setup helps you see the park scenes without spending the whole day just getting from one area to the next.

From there, you head to the first lagoons. The specific lagoon trio can vary by season, but Lagoa do Peixe, Lagoa da Andorinha, and Lagoa da Gaivota are listed as common stops. If you are hoping for specific names, keep expectations flexible, because nature drives the schedule.

Lagoon walking in Lençóis Maranhenses National Park: what to expect on foot

You will spend real time walking in the Lagoons of Lençóis Maranhenses National Park. The goal is to move between lagoon viewpoints and walking areas while your guide keeps the pacing sensible for a full circuit.

A helpful way to think about the day is as one long loop. You start at the first lagoons, then you move to the next set later after the lunch break. The whole circuit runs the majority of the day, not a single quick walk.

One key detail: the lagoons visited may change according to season. That is not a “bait and switch,” it is how this region works. Water levels shift, and the route adapts, so the tour is designed to keep you in the best available areas.

If you get motion sickness easily or you hate uneven ground, you should take that seriously. This is a dune and lagoon day. You will likely feel the walking and the sun more than you expect, even if you are an active person.

Lunch around 1 pm, and how to avoid food surprises

Around 1 pm, the tour stops for lunch. Meal costs are not included, so you are paying your own food and drinks.

This is where I recommend you plan ahead in two ways. First, bring enough cash or payment options for a meal, because you will not be able to “skip lunch” without affecting the day’s comfort. Second, go in ready for a restaurant stop with simple practical needs, not a full restaurant experience with guaranteed service styles.

Also, the tour day is long, and language support can be uneven in places that are not run by the guide. The guide is listed as English, Portuguese, but if you need extra help communicating at lunch, having a translator app can save time and frustration.

The sunset pause: why the ending is more than just a finish line

After lunch, you continue the visit to the other lagoons for the rest of the day. The circuit includes a pause for sunset views, and they note it is dependent on weather.

This matters because light changes fast in that region. Instead of just reaching lagoons and calling it done, the tour is designed to give you time to see how the colors and reflections shift as the day cools down.

If the weather is not cooperative, the sunset stop may not look like the perfect photos. But the structure still aims to time part of the visit around the day’s best viewing window.

Even if you are mainly there for the lagoons, the sunset pause is what gives the day shape, not just time filling.

Price and value: $522 per group up to 5, and what you really get

The price is $522 per group up to 5 for a 10-hour tour. That sounds steep if you think in per-person terms, but this is a key point, it is priced per group.

If you fill the group size of 5, you are looking at roughly $104 per person. If your group is smaller, the effective per-person cost rises, but you still get the same core inclusions.

Here is what you should count as value:

• Transfer from Barreirinhas to Santo Amaro (and the return)
• Environmental fee for park access included
• Tour guide
• Walking in lagoons inside Lençóis Maranhenses National Park

What you should expect not to be included:

• Food and drink
• Municipal Tourism Tax of R$10

So the value is strongest if you have 3 to 5 people traveling together, or if you truly prefer a private group style for your pace. If you are traveling solo and the group cap does not apply to your situation, you may feel the price more.

Tour quality signals: guide kindness, but verify the basics

This tour depends on guide quality. When it goes well, the day feels well organized and people describe the experience as clean and well managed. A guide who is kind and attentive can make a big difference when you are spending hours in heat, sand, and on foot.

Still, you should take one precaution seriously. There have been cases where the guide did not show up as expected. That kind of miss turns a beautiful day into a headache.

My advice is simple: before you leave, confirm your pickup details and meeting point with the operator using the contact they provide. If anything is vague, clarify it in writing or message so you are not waiting around early in the morning.

Who this tour is best for, and who might want a different pace

This is best for you if:

• You want a full day in Lençóis Maranhenses centered on the Santo Amaro side
• You like guided walking and want access handled for the park area
• Your group can split the per-group price up to 5
• You care about seeing lagoon areas and getting a sunset viewing stop

This may not be ideal if:

• You want a short, easy outing with minimal walking
• You strongly dislike long outdoor days, since this runs about 10 hours
• You do not want to manage your own lunch and drinks
• You are hoping to drink alcohol on the tour, because alcohol and drugs are not allowed

Should you book Santo Amaro Lagoons from Barreirinhas?

I would book it if you are already in the Barreirinhas area and you want the Santo Amaro side of Lençóis Maranhenses with a guided full day. The combination of a 4×4 dune ride, lagoon walking, and a planned sunset pause gives you a complete experience, not just one viewpoint.

I would pause and double-check your plans if you are sensitive to schedule slippage or you cannot spare the extra time for confirming pickup. The day relies on timing, and lunch is on you, plus there is that R$10 municipal tourism tax.

If your group is 3 to 5 people, the price usually feels more fair. If you are solo, it can still be worth it, but you will likely feel the cost more.

FAQ

How long is the Santo Amaro Lagoons full day tour?

The tour is listed as 10 hours.

What is the price for this tour?

The price is $522 per group, up to 5 people.

Where does the tour start, and what are the boarding times?

Boarding in Barreirinhas is at 08:00 am, and boarding in Santo Amaro is at 08:05 am.

What time does pick up happen if I am staying in Barreirinhas?

Pick up is optional and is offered between 7:30 am and 8:40 am. They ask you to share your Pousada so they can adjust details.

What does the tour include?

It includes transfer from Barreirinhas to Santo Amaro, environmental fee for park access, a tour guide, and walking in lagoons of Lençóis Maranhenses National Park.

What is not included?

Food and drink are not included. There is also a municipal tourism tax of R$10 (Reais).

Where and when do you have lunch?

There is a lunch stop around 1 pm, and meals are not included.

What languages is the live guide available in?

The live tour guide is listed in English and Portuguese.

Is alcohol allowed on the tour?

No, alcohol and drugs are not allowed.