Reviewed · SESIMBRA TOURS

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling

5.0 · 146 reviews 2.5 hours From $58 Operated by Blue Coast Tours Sesimbra · Bookable on GetYourGuide
Book on GetYourGuide →

If you want the rugged Sesimbra coast at a slower pace, this secret bays and beaches boat trip is built for calm water and up-close snorkeling. In about 2.5 hours, you cruise through protected coves, pause for swim time, and get a real feel for why this stretch of coastline is famous for crystal-clear shallows.

What I love most is how the experience blends boat time with hands-on water time. I also like that you get snorkeling gear on board and a guided focus on marine life, not just a quick splash.

The main drawback to plan around is sun and timing. There is little to no shade on the boat, and some beach stops are short, so if your idea of a perfect day is long lounging on sand, you might wish for more hours in the water or on shore.

Key things worth knowing before you go

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Key things worth knowing before you go

  • Small-group cap of 8 keeps the pace friendly and makes it easier to get help during boarding and snorkeling
  • Two-ish snorkeling moments plus beach time gives you multiple chances to see fish without feeling rushed
  • Protected coves and sea caves mean calmer water for swimming and great photo angles
  • Parque Marinho Professor Luiz Saldanha is the focus for marine-life viewing during the swim stops
  • Regional drink and local wine tasting add a nice local touch without turning this into a food tour

Sesimbra Secret Bays: Why This Coast Tour Feels More Peaceful

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Sesimbra Secret Bays: Why This Coast Tour Feels More Peaceful
Sesimbra sits just outside Lisbon’s big “must-see” circuit, and that matters here. Instead of spending your day parked in traffic or fighting crowds, you’re out on the water, moving between cliff-lined bays where the water tends to stay calm and clear.

The tour’s whole rhythm is about quiet contact with the sea. You’ll see sea caves, rock formations, and jagged coastline from the boat, then you’ll actually get in the water. That combo is the difference between a photo-only trip and something that feels like a true experience.

Also, this is not a long day tour. At 2.5 hours, it’s the kind of outing that works even when you want something active but still want to keep your evening free for Lisbon dinner plans.

Meeting Blue Coast Tours Sesimbra: The Practical Setup

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Meeting Blue Coast Tours Sesimbra: The Practical Setup
You meet your guide at Blue Coast Tours Sesimbra. There is no hotel pickup included, so you’ll need to get yourself there on your own (public transport, a taxi, or whatever works for your base in Lisbon District).

Right at the start, you get safety instructions and a quick overview of what to expect. Life jackets are included, and you’ll have snorkeling gear on board. The guides run the show in multiple languages, including Portuguese, Spanish, English, and French, which is helpful when your group has mixed backgrounds.

From what you’ll experience on the water, the crew style is hands-on. People often mention that the guides help with boarding and off-boarding, and that they’re happy to take photos for your group when you’re at the stops. That’s not a “nice-to-have” detail if you’re trying to juggle fins, a mask, and camera gear in a small boat.

One more reality check: this tour spends lots of time outside in daylight. Even if the water is calm, the sun can be strong. I’d treat this as a “bring sun protection seriously” activity, not an optional step.

What to bring (keep it simple)

  • Sun hat
  • Swimwear
  • Towel
  • Sunscreen
  • Comfortable clothes

Cruising Crystal-Blue Water: How the Boat Time Works

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Cruising Crystal-Blue Water: How the Boat Time Works
Once you’re underway, the trip follows a classic coastal pattern, boat cruising between protected bays, then stop for swim and snorkel time. The boat moves gently along cliffs and lush vegetation, and you’ll see sea caves and unique rock shapes as the shoreline changes.

A big part of the value here is what happens between stops. The guide shares information about local ecology and points of interest along the coast. That turns the “travel time” into something you actually pay attention to, instead of just waiting for the next swim.

You’ll also be doing quick photo moments during stops. That matters because the coastline has multiple angles, from above the water and at the edges of caves. If you only photograph from a single position, you miss half the character.

And yes, the itinerary is designed for multiple water moments. You don’t spend 2 hours searching for the perfect “only one stop” spot. You get several chances, with slightly different beach and bay vibes.

Praia da Cova Stop: First Wildlife Viewing and a Quick Break (30 Minutes)

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Praia da Cova Stop: First Wildlife Viewing and a Quick Break (30 Minutes)
Your first structured stop is Praia da Cova. This is your “get your bearings, stretch your legs, then get wet” moment.

Expect a photo stop and some guided explanation right as you arrive. You’ll then have break time, and the schedule includes a good stretch of wildlife viewing time, around 30 minutes. After that, the sea-life focus continues through the swim and snorkeling portion.

What makes this stop worth caring about is the pacing. It’s early enough in the tour that you’ll likely feel fresh, and it sets the tone for what the water clarity is like that day. If conditions are calm, this is where the snorkeling feeling tends to click for many people.

Practical tip: treat this stop as your sunscreen check. Put it on early, reapply if you’re out in the sun, and keep a towel ready so you’re not scrambling when you get back on board.

Ribeiro do Cavalo Beach: Walk, Swim, Snorkel, Repeat (30 Minutes)

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Ribeiro do Cavalo Beach: Walk, Swim, Snorkel, Repeat (30 Minutes)
Ribeiro do Cavalo Beach is a more “do stuff on land” stop. You’ll get free time and the chance to walk, then you’ll switch back to swimming and snorkeling.

The guide keeps it practical. They’ll point out where to look and what kind of marine life you might spot. The stop includes marine life viewing time and scenic views on the way, so you’re not only focused on the mask.

Why this one stands out is the balance: a bit of beach movement, then water time. If you like snorkeling but also want to feel sand under your feet for a moment, this is a strong choice.

Time is still time-limited, though. Plan to swap between walking, photos, and water without expecting a long, slow beach afternoon.

Praia da Mijona: Another Snorkel Chance With Guided Marine Life Viewing (30 Minutes)

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Praia da Mijona: Another Snorkel Chance With Guided Marine Life Viewing (30 Minutes)
Next comes Praia da Mijona (often written as Cova de Mijona in similar itineraries). Like the earlier beach stops, you’ll get photo time and a guided introduction, then free time to enjoy the shore.

This stop again includes swimming and snorkeling with marine life viewing. In other words, you get a second chance to find your rhythm underwater. Masks fit differently for different people, and sometimes the first snorkeling moment is where you learn how the gear feels. The second stop is where you can do better.

One benefit of having multiple snorkeling chances is that it reduces the odds of a “bad swim” ruining your day. If you only had one water stop, your experience would be tied to one moment’s visibility and currents. With multiple pauses, your odds improve naturally.

Inferno Beach: Shorter Stop, Dramatic Coast Focus (20 Minutes)

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Inferno Beach: Shorter Stop, Dramatic Coast Focus (20 Minutes)
Inferno beach is included with a shorter timing block, about 20 minutes. That’s enough for a photo stop, then a swim or snorkel moment, then off you go.

This is the stop for people who like atmosphere over hang time. Expect it to feel more dramatic because of the coastline character. You’ll be in and out quickly, so keep your gear setup efficient when it’s time to re-board.

If you know you prefer long beach time, this is where you should adjust expectations. The rest of the tour gives you more time to mix shore and sea, but Inferno is more of a “taste” moment.

Baleeira Bay and Beach: Wine Tasting Plus a Final Feel-Good Finale (40 Minutes)

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Baleeira Bay and Beach: Wine Tasting Plus a Final Feel-Good Finale (40 Minutes)
The last stop is Baleeira Bay and Beach, with the longest time block, about 40 minutes. This is where the day slows down just a bit and finishes on a friendly note.

Along with guided and free time, this stop includes wine tasting. You’ll also have opportunities for swimming and snorkeling and more marine life viewing before you head back.

This is a nice emotional finish. The first part of the tour is about getting oriented and testing the water. The last stop is about enjoying the coast without rushing the same way. It’s also a smart moment for non-snorkelers in a group, since you still get scenic views and beach time even if you decide not to go in.

When the boat starts moving again after the final stop, you get those last panoramic views before disembarking. That’s a good time to take photos, sit back, and let the day sink in.

Snorkeling at Parque Marinho Professor Luiz Saldanha: Getting the Most Out of It

Sesimbra: Secret Bays and Beaches Boat Tour with Snorkeling - Snorkeling at Parque Marinho Professor Luiz Saldanha: Getting the Most Out of It
Your snorkeling focus includes the marine-life area connected with Parque Marinho Professor Luiz Saldanha. Practically, what that means is the guides keep attention on what’s worth looking for, not just “jump in and hope.”

Gear is included, and you’ll be surrounded by calm water on most of the stops, which makes mask time less stressful. Multiple people mention excellent snorkeling quality and lots of fish, and I’d take that as a sign the crew picks spots where the water and marine visibility tend to work.

Here’s how to maximize your chances once you’re in:

  • Keep your breathing steady and don’t fight the mask in the first 20 seconds
  • Look around, not just straight ahead, fish often show up near edges and within the water’s calm zones
  • Follow the guide’s pointers on where they expect marine life to be

If you’re new to snorkeling, this style of tour is a good training ground because the stops are structured. You’re not stuck in open water for long stretches. You swim, snorkel, then return in time for another scenic segment.

Also, the guides often help with the logistics and picture-taking. That’s useful because it keeps you from feeling like you have to manage everything alone.

Service and Guide Style: From Marco and Vanessa to Jorge and Marcos

One of the most consistent strengths is the human side of the trip. People repeatedly talk about friendly, helpful guides and an informative approach that makes the time feel both relaxed and meaningful.

You’ll see names like Marco and Vanessa mentioned for their knowledge and helpfulness. Jorge and Marcos also show up as guides who make everyone comfortable, especially during snorkeling. George is another name tied to multilingual guidance, which is great if you want the coast talk explained in a language you actually speak at ease.

Catarina and Andre are mentioned too, with people highlighting how attentive the crew is and how they help create those small moments, like taking photos for the group and offering a local drink.

That matters because snorkeling can be intimidating if you don’t know what to do. When the crew is patient and organized, you spend more time enjoying and less time worrying.

Price and Value at $58: What You’re Really Paying For

At $58 per person for a 2.5-hour tour, you’re paying for boat access, guided coastal navigation, and included snorkeling gear. You’re also getting life jackets and a regional drink, plus a plan with multiple stops instead of a single swim location.

I think the value comes from how much you actually do in those 2.5 hours:

  • Boat cruise through caves and protected bays
  • Several structured stops for scenery and time in the water
  • Guided marine life viewing and ecology talk
  • Included snorkeling gear and life jackets
  • Regional drink, plus local wine tasting at the longer last stop

Yes, food and drinks beyond what’s included are not part of the price. Still, the drink component feels like a real local touch, not an afterthought.

Also, the small-group size helps. A max of 8 participants means more attention per person and less waiting when it’s time to get into the water.

Who Should Book This Sesimbra Boat Tour, and Who Might Not

This tour is a strong match if you want:

  • A small-group boat-and-snorkel combo
  • Calm coves and cliff scenery rather than a city sightseeing loop
  • A half-day activity with enough water time to feel like a real swim day

It’s also a good fit for people who like guidance. The guides share information about ecology and point you toward marine-life viewing, which makes snorkeling more rewarding.

The group might not be the best fit if:

  • You hate sun exposure and want lots of shade, since the boat is out in the open
  • You’re the type who wants long beach lounging, since some stops are short, including Inferno beach

Should You Book This Sesimbra Secret Bays Boat Tour?

Book it if you want an easy, high-reward way to experience Sesimbra’s coastline up close, with snorkeling that feels practical and guided. The small group size, multiple swim moments, and included gear make the trip feel like good money, not just a scenic cruise with a quick swim.

Before you go, prep for two things: sun and time. Bring the hat, towel, and sunscreen, and mentally shift your expectations toward a “series of short, excellent stops” rather than a single long beach day.

If that sounds like your pace, you’re going to have a memorable morning or afternoon on the water.

FAQ

Where is the meeting point for the tour?

Meet your guide at Blue Coast Tours Sesimbra.

How long is the Sesimbra boat tour with snorkeling?

The duration is 2.5 hours.

What is the group size?

The tour is a small group limited to 8 participants.

Is snorkeling equipment included?

Yes. Snorkeling gear is included, along with life jackets.

Are drinks included?

A regional drink is included, and the itinerary includes a stop with wine tasting.

Is hotel pickup or drop-off included?

No. Hotel pickup and drop-off are not included.

What should I bring?

Bring a sun hat, swimwear, a towel, sunscreen, and comfortable clothes.

Can I cancel for a refund?

Yes, you can cancel up to 24 hours in advance for a full refund.

More like this

Sesimbra Tours, compared.

The full Sesimbra Tours list →
Arrabida Natural Park & Caves Guided Kayaking Tour
★★★★★★★★★★4.9· 775 reviews· from $41

Arrabida Natural Park & Caves Guided Kayaking Tour

Read our review →
Ribeiro Cavalo Beach, Caves, & Arrábida Kayak Tour
★★★★★★★★★★4.8· 384 reviews· from $44

Ribeiro Cavalo Beach, Caves, & Arrábida Kayak Tour

Read our review →
Arrábida and Sesimbra Day Trip with Wine
★★★★★★★★★★4.8· 366 reviews· from $75

Arrábida and Sesimbra Day Trip with Wine

Read our review →
Sesimbra/Arrábida Natural Park Coasteering Adventure
★★★★★★★★★★4.9· 345 reviews· from $76

Sesimbra/Arrábida Natural Park Coasteering Adventure

Read our review →
Arrábida Dolphin and Whale Watching tour with biologist
★★★★★★★★★★5.0· 248 reviews· from $66

Arrábida Dolphin and Whale Watching tour with biologist

Read our review →
Arrábida Natural Park and Sesimbra Day Trip
★★★★★★★★★★4.9· 232 reviews· from $88

Arrábida Natural Park and Sesimbra Day Trip

Read our review →
Arrábida Dolphin Watching Boat Tour with Biologist
★★★★★★★★★★4.9· 197 reviews· from $63

Arrábida Dolphin Watching Boat Tour with Biologist

Read our review →

Browse the lists this tour appears in

Scroll to Top

Explore Lisbon

Every kind of day out, and the best of each.