REVIEW · PORTUGAL
Double dream dive on a Maritime Reserve
The Atlantic keeps its best sights below the surface. This three-hour outing takes you from Sesimbra into Portugal’s Maritime Reserve, where your guide shapes the underwater session around what you want to see and do. I like the small maximum group of six, and I like that equipment, instruction, and optional hotel transfers make the day easier for visitors without their own gear. The main consideration is that non-certified participants receive a closely supervised try dive, not the same freedom as certified divers.
I also like the thoughtful attitude toward the sea. The briefing covers how to behave around rocks, plants, and animals, with a clear aim: enjoy the reserve without touching or disturbing it. The possible drawback is the price, $180.62 per person, which is a serious outlay for about three hours. Still, the included gear, personal attention, and optional transport can make the cost reasonable for the right person.
What Makes This Sesimbra Underwater Trip Special

- The reserve is home to varied marine life: You might see octopus, conger eels, nudibranchs, and many kinds of fish.
- A group of no more than six keeps things personal: Your guide has more time to check equipment, answer questions, and monitor the group.
- Certified and non-certified participants can take part: Certified participants receive more independence, while first-timers stay under constant instructor supervision.
- You can shape the underwater outing around your interests: Swimming, photography, and visiting a wreck are all mentioned as possible aims.
- Equipment is supplied: The team gathers your measurements and needs so the kit fits properly.
- Hotel transport is an available upgrade: This is useful if you are staying away from the meeting point in Sesimbra.
Reaching Sesimbra’s Maritime Reserve

Sesimbra was once a fishing village and is now one of Portugal’s major protected sea areas. That change matters. The reserve gives you a chance to see marine life in a managed setting rather than simply heading into open water with no clear plan.
The meeting point is at CVPM+9Q, Sesimbra. The experience begins and ends there unless you add the accommodation transfer option. Opening hours are listed as 8:00 a.m. to 4:00 p.m., Monday through Sunday, so you can fit it into a morning or afternoon plan, subject to the time you book.
I would allow extra time before the stated start. The team needs to confirm your experience level, collect equipment information, and make sure the group is properly prepared. If you bring your own kit, you still need to communicate your sizes and requirements clearly. If you rent everything, the equipment check becomes especially important.
The small group is one of the strongest practical features here. Six people is enough to create a social outing without turning the session into a crowd. It also gives the instructor a realistic chance to keep track of each person, especially when a first-timer joins certified participants.
A few more dives around Portugal worth comparing
- Funchal: Scuba Diving Experience for Beginners
★ 4.9 · 715 reviews - Funchal: Scuba Diving Experience for Beginners
★ 4.9 · 494 reviews - Scuba Diving Experience in Madeira
★ 5.0 · 266 reviews
The 60 to 90 Minute Preparation Period

Before heading into the main underwater session, you receive a briefing lasting around 60 to 90 minutes in the ocean. That wording suggests the preparation is not just a quick talk on land. You should expect time devoted to where the group is going, how to behave underwater, and what to do around the reserve’s animals, rocks, and plant life.
For a certified participant, this is useful orientation rather than basic classroom theory. Water conditions and marine life vary from place to place, so even an experienced person benefits from learning the local plan. The guide can explain what the group hopes to see and how the session will be organized.
For a non-certified participant, this preparation is more important. You will receive a try dive with an instructor supervising you continuously. You are not simply handed equipment and sent off with the certified participants. Speak with the host before booking so you understand exactly how the try-dive format differs from the certified experience.
That distinction is central to choosing this outing. A certified participant can approach the session with personal goals, such as photography or exploring a wreck. A beginner should expect a more controlled introduction, with the instructor’s attention focused on comfort, safety, and basic participation.
Choosing Your Best Underwater Session
The experience is designed around the idea of finding your best underwater setting. That could mean calmly swimming around, photographing marine life, or visiting a wreck if conditions and the day’s plan allow it.
This flexibility is valuable because not everyone wants the same thing. I would tell a photographer to discuss that interest before entering the water. A person fascinated by sea creatures may want to ask about the kinds of life commonly seen in the reserve. Someone hoping to visit a wreck should confirm whether that option is available on the selected date and suitable for the group.
The wording does not guarantee a particular animal, wreck, or site. That is normal for sea-based activities. Marine life moves, conditions change, and the guide must make choices based on the day. The reasonable promise is not a fixed checklist. It is a guided outing in a protected area with the chance to see a range of underwater life.
Past participants have encountered octopus, conger eels, nudibranchs, and plenty of fish. Those sightings give you a useful sense of what the reserve can offer, but they are not a guarantee. I would arrive with a clear interest, yet keep enough flexibility to enjoy what actually appears.
Marine Life Without the Hands-On Habit

The strongest environmental message here is simple: look, enjoy, and leave things alone. The briefing treats the ocean, rocks, animals, and plant life as part of the experience, but also as things you must protect.
That approach improves the outing in practical ways. You learn to observe rather than chase. You avoid damaging fragile growth on rocks. You leave animals in place instead of handling them for a photograph. These are small actions, but they matter in a protected marine area.
If you are new to underwater activities, the guide’s instructions can help you feel more at ease. You will have a clear standard for how to behave, and the small group makes it easier to ask questions. If you are certified, the conservation guidance is still worth taking seriously. Experience does not remove the need for care.
The reserve is not a marine park with guaranteed performances. There are no promises of a particular creature appearing on cue. The reward is the chance to see natural life in its own setting, with the responsibility that comes with it.
Same coastline, a very different dive:
- Diving in the Madeira Aquarium
★ 5.0 · 215 reviews - Porto Moniz: Diving with Sharks and Rays in Madeira Aquarium
★ 4.9 · 192 reviews - Albufeira: Scuba Diving Experience for Beginners
★ 4.8 · 161 reviews - Lagos: Guided Scuba Diving Trip for Beginners
★ 4.3 · 131 reviews
Equipment, Transfers, and Personal Attention

All necessary scuba equipment is provided. This is a major part of the value for people who are visiting Portugal without their own kit. You do not need to pack bulky equipment or arrange separate rentals.
The team also gathers your information to match you with equipment that fits. That detail matters more than it may sound. Poorly fitting equipment can distract you throughout the session, while a proper fit helps you focus on breathing, movement, and the marine life around you.
One participant arrived without personal equipment and received gear selected to fit properly. The same person also used the arranged ride to and from the hotel. That tells me the provider can handle more than the basic underwater portion, although transport requires an upgrade and is not included in the listed base price.
If you are staying in or near Sesimbra and can reach the meeting point easily, you may prefer to save the extra transport cost. If you are based farther away, the transfer option can remove a major nuisance. Ask about the exact pickup area before assuming your accommodation qualifies.
English is offered, which helps international visitors understand the briefing and communicate about equipment or comfort. Confirmation arrives at booking, and the activity is open to most participants, subject to the certification and supervision rules.
Is $180.62 Good Value?

At $180.62 per person, this is not a casual budget activity. The price makes the most sense when you use the parts that would otherwise cost extra: scuba equipment, instructor time, small-group attention, and possibly transportation.
A certified person who already owns equipment and can reach Sesimbra independently may feel the price more sharply. In that case, the convenience and local guidance need to matter to you. The outing becomes more appealing if you want an organized session in the reserve rather than arranging every detail yourself.
For a visitor without equipment, the calculation looks better. You receive the kit, preparation, guide support, and access to a protected marine area in one booking. The maximum of six also means you are not paying for a large commercial group with limited individual attention.
The duration is about three hours, though the 60 to 90 minute water briefing takes a substantial part of that time. I would not judge the value by underwater minutes alone. Preparation, gear fitting, travel to the site, and the return to the meeting point all form part of the service.
The experience is booked an average of 33 days ahead, so advance planning is sensible. That does not guarantee a particular date, but it signals that you should not leave this until the last day of a Sesimbra stay.
Weather, Timing, and Cancellation

Sea conditions matter. If poor weather forces cancellation, you are offered another date or a full refund. The same applies if the minimum number of participants is not reached.
That policy is fair for a water-based outing, but it means you should keep some flexibility in your schedule. I would avoid placing this on the final morning of a Portugal trip. A changed date is useful only if you still have time available.
You can cancel for a full refund up to 24 hours before the start time. Cancellations or changes inside that period are not accepted for a refund, and the cut-off uses local time in Portugal.
The activity runs from Monday through Sunday, within the listed 8:00 a.m. to 4:00 p.m. operating window. Confirm the exact starting time when you book, since the supplied details give the general hours rather than one fixed departure.
Who Will Enjoy This Most?

This outing is a good match for a certified diver who wants to explore new Portuguese waters without bringing a full kit or planning a site alone. It also suits someone who values a small group and wants to discuss personal aims such as photography, relaxed swimming, or a wreck visit.
It can work for a non-certified participant, but you need the right expectations. The try dive is permanently supervised by an instructor, so you will have less independence than a certified participant. That is a benefit for safety and confidence, not a disadvantage, but it creates a different type of experience.
The outing is less suitable if you need a guaranteed wreck visit, a specific animal sighting, or a low-cost activity. The available information does not promise a fixed underwater site or species list. You should be comfortable letting the guide adapt the plan.
It is also a good option for people who prefer support with equipment and transport. The team’s attention to fitting gear and arranging hotel rides can save time and reduce stress, especially if this is one of your first organized scuba outings.
Should You Book the Sesimbra Reserve Outing?
I would book this if you are certified, want a guided session in Sesimbra’s Maritime Reserve, and value a small group over the lowest price. The chance to see octopus, conger eels, nudibranchs, and fish, plus the option to shape the session around photography or a wreck, gives the outing real appeal.
I would also consider it as a first try dive if you accept continuous instructor supervision and speak with the host beforehand about the differences. Skip it if your budget is tight, your schedule cannot absorb a weather change, or you need a guaranteed site.
For the right person, the cost buys more than time in the water. It buys preparation, equipment, guidance, and a responsible way to see a protected part of Portugal’s coast.
FAQ
Where does the experience begin and end?
It begins at CVPM+9Q in Sesimbra, Portugal, and ends back at the same meeting point. Accommodation transfers are available as an upgrade.
How long does the experience last?
The total duration is approximately three hours. The preparation and briefing in the ocean lasts around 60 to 90 minutes.
Can non-certified participants join?
Yes. Non-certified participants can take part in a try dive, but they remain under permanent supervision from a diving instructor.
What is provided?
All necessary scuba diving equipment is provided. The team can collect your equipment information to help arrange a suitable fit.
How many people can join?
The activity has a maximum of six travelers.
Is the experience offered in English?
Yes. English is one of the offered languages.
What might I see underwater?
The reserve may offer sightings of octopus, conger eels, nudibranchs, and many fish. Specific animals and sites are not guaranteed.
What happens if the weather is poor?
If poor weather causes cancellation, you can choose another date or receive a full refund. A different date, experience, or full refund is also offered if the minimum number of participants is not reached.
New dives around Portugal
- Lisbon: Try Scuba Diving in Arrabida Marine Reserve with photos★ 5.0 · 99 reviews
- Try Dive Marine Reserve, Arrábida, Setúbal, Sesimbra, near Lisbon★ 5.0 · 13 reviews
- Lisbon Eco-Try Dive – Diving Baptism★ 5.0 · 13 reviews
- Lisbon: Catamaran Boat Party with Music, Open Bar & Dives★ 4.2 · 109 reviews
- Lagos: Guided Scuba Diving Trip for Beginners★ 4.3 · 131 reviews
- Vila Franca Do Campo: Introduction to Scuba Diving Tour★ 5.0 · 117 reviews
- Albufeira: Scuba Diving Experience for Beginners★ 4.8 · 161 reviews
- Porto Moniz: Diving with Sharks and Rays in Madeira Aquarium★ 4.9 · 192 reviews
Scuba Diving, compared.

Great Barrier Reef Snorkeling and Diving Cruise from Cairns
Read our review →
First-Time Scuba Diving in Honolulu + Free Videos
Read our review →
Silfra: Diving Between Tectonic Plates – Meet on Location
Read our review →
Ocean Freedom Great Barrier Reef Luxury Snorkel and Dive Cruise
Read our review →
Beginner Scuba Diving with Turtles and Videos, San Juan
Read our review →
Tenerife: Your First Scuba Diving Experience in Turtle Area
Read our review →Browse the lists this tour appears in


