Reviewed · SCUBA DIVING

Lisbon Eco-Try Dive – Diving Baptism

★ 5.0 · 13 reviews 3 hours (approx.) From $117 Operated by Anthia Diving Center · Bookable on Viator
Book on Viator →

Sesimbra offers an unusually meaningful first underwater experience: you are not simply learning to breathe through a regulator, you are helping care for the seabed inside Professor Luiz Saldanha Marine Park. The setting is part of Arrábida Natural Park, an area known for some of Europe’s broadest marine biodiversity.

I like two things right away. First, an instructor is assigned to every two people in the water, which gives beginners close support. Second, the eco-diving approach adds a clear purpose, with a chance to help clean and preserve the sea floor and earn a Mission Deep Blue certificate. The main consideration is physical fitness: this is an active three-hour outing, and poor weather can force a new date or cancellation.

Key points to know before booking

Lisbon Eco-Try Dive - Diving Baptism - Key points to know before booking

  • A first scuba session in Sesimbra: You can experience the underwater world without signing up for a full certification course.
  • A strong instructor-to-participant ratio: Anthia Diving Center assigns one instructor to every two people in the water.
  • An eco-focused activity: You may help clean and protect the seabed within Professor Luiz Saldanha Marine Park.
  • A recognized conservation program: The Mission Deep Blue certificate is linked with SSI and Wild Sea Europe.
  • A compact three-hour schedule: The experience starts at 1 pm and finishes back at Anthia Diving Center.
  • A private outing: Only your own group takes part, rather than joining a mixed public group.

Why Sesimbra is a smart place for a first underwater session

Lisbon Eco-Try Dive - Diving Baptism - Why Sesimbra is a smart place for a first underwater session

Sesimbra sits in Portugal’s Setubal District, beside the Arrábida Natural Park. For this experience, the real attraction is below the surface. Professor Luiz Saldanha Marine Park protects a marine area with extensive biodiversity, giving you a setting that feels more purposeful than a basic pool lesson or a standard introductory outing.

You do not need to commit to a full scuba certification program. That makes this a useful trial for someone who is curious but not ready to spend several days on formal training. You will get a taste of the equipment, the underwater setting, and the calm, controlled rhythm of moving below the surface.

The activity is also built around conservation. At Anthia Diving Center, the aim is not only to show you marine life. You have the opportunity to help remove waste and care for the seabed. That small task changes the tone of the experience. You are not just looking at the marine environment, you are taking part in its protection.

The park’s protected status matters here. It gives the session a clear environmental setting, and the eco-diving philosophy helps connect what you see underwater with the need to preserve it. If you want a first scuba experience with a social and environmental purpose, this is a stronger choice than an outing focused only on photos.

What happens at Anthia Diving Center at 1 pm

Lisbon Eco-Try Dive - Diving Baptism - What happens at Anthia Diving Center at 1 pm

You meet at Anthia Diving Center, Porto de Abrigo, Loja 1, 2970-152 Sesimbra, Portugal. The start time is 1 pm, so plan to arrive with enough time to find the center and get settled before the activity begins.

The supplied details do not specify the exact classroom sequence, equipment brands, or how long you spend on land before entering the water. You should expect the center to organize the introductory portion before the underwater session, but ask Anthia Diving Center directly if you need a precise breakdown.

The format is private, which is useful for a first attempt. Only your group participates. You avoid being placed with a large collection of unrelated people, and the instructor can focus on the small group’s pace and comfort.

The most reassuring detail is the staffing ratio. One instructor for every two people in the water gives you much closer supervision than a large beginner group would. For anyone who feels nervous about breathing underwater, managing equipment, or adjusting to the new surroundings, this is a real advantage.

The experience is offered in English. Confirmation arrives at booking, and the ticket is mobile, so you do not need to print a voucher.

Entering Professor Luiz Saldanha Marine Park

Lisbon Eco-Try Dive - Diving Baptism - Entering Professor Luiz Saldanha Marine Park

The main session takes place in Professor Luiz Saldanha Marine Park, within the Arrábida area. This is the point of the outing, not simply a transfer stop. You come here to experience marine life in a protected setting and to learn how your actions affect the sea floor.

A first scuba session can feel like a lot to process. You are learning new equipment, following instructions, controlling your breathing, and paying attention to your surroundings at the same time. The close instructor ratio should help keep the experience manageable, especially for someone with no previous scuba background.

The center describes the marine area as having the most extensive biodiversity in Europe. That is a broad claim, and the exact species you see will depend on conditions, timing, and the particular route used that day. Still, the location gives the activity a serious ecological context.

You should not book this expecting a guaranteed list of animals or a fixed underwater spectacle. The value is in trying a new activity in a protected marine zone, with the chance to notice a variety of underwater life while learning responsible behavior.

The sea can also be less predictable than a swimming pool. The experience requires good weather, and conditions may affect the schedule. If the outing is canceled because of poor weather, you can choose another date or receive a full refund.

The eco-diving element gives the activity a purpose

The conservation work is the feature I find most appealing. Many introductory scuba activities focus entirely on the thrill of going underwater. Here, you may help clean and preserve the seabed as part of the session.

That does not turn you into a marine scientist. It does give you a practical way to connect with the place. You see that a protected marine area needs care, not just admiration. For families with older children, environmentally minded visitors, and anyone interested in responsible tourism, that purpose adds value.

At the end, you receive a certificate called Mission Deep Blue. The program is internationally recognized by SSI, or Scuba Schools International, and Wild Sea Europe. The certificate is not the same as a full scuba qualification, so do not confuse it with certification that allows independent scuba activity.

Its value is more personal and educational. You finish with a record of taking part in an eco-focused underwater program. If you later decide to pursue formal scuba training, this first session may help you judge how comfortable and interested you are.

Nearby in Setubal District, a different day entirely:

What the three-hour schedule means for you

Lisbon Eco-Try Dive - Diving Baptism - What the three-hour schedule means for you

The total duration is about three hours. That is long enough for preparation, instruction, the underwater portion, and the return to the center, but short enough to fit beside other plans in the Setubal District.

Because the start time is fixed at 1 pm, you can plan a morning in Sesimbra or the surrounding Arrábida area. Leave room in your day after the activity as well. The stated end point is the meeting location, but no exact finishing time is provided.

The compact schedule is a good fit if you want to test scuba without giving up a full day. It also works well for someone visiting the region for a short stay. The tradeoff is that three hours can pass quickly once preparation and equipment handling are included. You should see this as an introduction, not an extensive marine expedition.

The activity requires a moderate level of physical fitness. The information does not give a detailed medical checklist or list restrictions, so contact Anthia Diving Center before booking if you have a health concern or are unsure about the physical demands.

Is $117.21 a fair price?

At $117.21 per person, this is not the cheapest way to spend three hours in Sesimbra. You are paying for a specialized activity, instructor supervision, equipment-based instruction, a private group format, and access to a protected marine setting.

The instructor ratio is especially important when judging the price. One instructor for two people means you are paying for close attention rather than being one person in a large beginner class. That can make a major difference when you are learning unfamiliar skills underwater.

The eco element adds another layer of value. Your session includes an opportunity to contribute to seabed care, plus the Mission Deep Blue certificate. Those features will matter more to you if conservation is part of your reason for booking. If your only aim is to see marine life as cheaply as possible, the price may feel high.

The private format also affects the calculation. Only your group participates, which offers privacy and a more focused pace. For a couple, family, or small group of friends, that can justify the cost. A solo participant should consider the price more carefully, since the listing does not state how the private arrangement affects the group size or final session format.

Who will get the most from this experience?

Lisbon Eco-Try Dive - Diving Baptism - Who will get the most from this experience?

This outing suits you if you are curious about scuba but do not want to begin with a full certification program. It is also a good match if you care about marine conservation and prefer activities that include a hands-on purpose.

The private format and close instructor support make it appealing for first-timers who want a calmer introduction. A small group can be easier to manage than a crowded class, especially when you are learning to handle equipment and follow underwater instructions.

You should also be comfortable with moderate physical activity. The center wants participants to have a moderate fitness level, and the session takes place in the sea rather than a controlled indoor setting.

This may not be the right pick if you want a long underwater excursion, a guaranteed list of marine animals, or a full scuba qualification. It is a sample of the sport, not a replacement for formal training.

What I would clarify before you go

The supplied information leaves a few practical points open. Before booking, I would ask Anthia Diving Center about the minimum age, any medical requirements, the exact equipment supplied, and how much time is spent in the water.

I would also confirm the expected end time. The experience lasts about three hours and returns to the meeting point, but a precise finish is not stated. That matters if you have dinner plans, a transfer, or another timed activity.

Ask what clothing and personal items you should bring as well. The available details do not specify towels, swimwear, footwear, or storage. A quick message to the center can prevent a small problem on the day.

Since weather affects the outing, keep your schedule flexible. If poor weather causes cancellation, you can select a different date or receive a full refund. For a full refund in other circumstances, cancel at least 24 hours before the 1 pm start time. Changes or cancellations made inside that 24-hour window are not accepted for a refund.

The good and less convenient parts

The strongest feature is the balance between adventure and responsibility. You get an introduction to scuba in a protected marine area, while also having the chance to help care for the seabed.

The second major strength is supervision. The one-to-two instructor ratio is unusually helpful for a beginner, and the private group format keeps the session personal.

The limitations are clear too. Three hours is an introduction, not a full course. The physical requirements and weather dependence may also make this less convenient than a land-based activity. Finally, the exact marine life, water conditions, and underwater route are not guaranteed.

The very high 4.9 rating from 13 ratings, with 100 percent recommendation, supports the idea that the experience delivers what it promises. The most useful personal detail is the description of the outing as amazing, unforgettable, and guided by friendly people. That points to the human side of the activity, which matters when you are trying something that can feel unfamiliar or intimidating.

Should you book the Sesimbra try scuba experience?

Book it if you want a short, private introduction to scuba with close instructor support and a real conservation angle. The Mission Deep Blue certificate and the chance to help clean the seabed make this more meaningful than a simple first underwater lesson.

Think twice if you are looking for formal scuba certification, a long day at sea, or guaranteed wildlife sightings. At $117.21, the price makes the most sense for you if the small-group supervision and eco work are important.

For a first attempt in the Setubal District, I like the combination of protected waters, limited group size, English service, and environmental action. Check the physical requirements and weather forecast, keep your schedule flexible, and contact Anthia Diving Center about the few details that are not provided before you pay.

FAQ

Where does the try scuba experience take place?

The activity meets at Anthia Diving Center, Porto de Abrigo, Loja 1, 2970-152 Sesimbra, Portugal. The underwater session takes place in Professor Luiz Saldanha Marine Park, in the Arrábida Natural Park area, and the activity ends back at the meeting point.

What time does the activity start?

The scheduled start time is 1 pm.

How long does the experience last?

The activity lasts approximately three hours.

Is the activity offered in English?

Yes. English is one of the available languages.

Is this a private activity?

Yes. Only your group participates.

Do I need previous scuba certification?

No. The program is designed as a try scuba experience, so you can learn about the underwater world without committing to a longer certification program.

What happens if the weather is poor?

The experience requires good weather. If it is canceled because of poor conditions, you can choose another date or receive a full refund. You can also cancel at least 24 hours before the start time for a full refund.

More like this

Scuba Diving, compared.

The full Scuba Diving list →
Lisbon: Try Scuba Diving in Arrabida Marine Reserve with photos
★★★★★★★★★★5.0· 99 reviews· from $108

Lisbon: Try Scuba Diving in Arrabida Marine Reserve with photos

Read our review →
Arrábida – Sesimbra: Eco-Friendly Beginner’s Scuba Diving
★★★★★★★★★★5.0· 52 reviews· from $111

Arrábida – Sesimbra: Eco-Friendly Beginner’s Scuba Diving

Read our review →
Sesimbra: Arrábida Marine Reserve Scuba Diving Experience
★★★★★★★★★★5.0· 30 reviews· from $136

Sesimbra: Arrábida Marine Reserve Scuba Diving Experience

Read our review →
Sesimbra: First Scuba Diving Experience in the Ocean
★★★★★★★★★★4.8· 14 reviews· from $117

Sesimbra: First Scuba Diving Experience in the Ocean

Read our review →

Browse the lists this tour appears in

Scroll to Top

Explore Lisbon

Pick a hill, a river or a table.