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Explore the Marietas Islands with a 4-hour scuba tour from Sayulita. Enjoy guided dives, marine life, and stunning volcanic scenery—all in a small-group setting.
Discovering the Marietas Islands: A Practical Guide to Mexico’s Underwater Gem
Our review of the Scuba Diving Marietas Islands tour aims to give you an honest look at what this half-day adventure offers. While we haven’t personally taken this trip, the glowing reviews and detailed information paint a clear picture of why it’s a popular choice for travelers seeking memorable underwater experiences.
What we love about this tour is its small-group setting, which promises personalized attention, and the fact that all equipment is provided—a real time-saver and confidence booster for beginners. However, one potential consideration is the minimum booking requirement and weather dependence, which could lead to cancellations.
This dive tour suits those with a moderate physical fitness level, an interest in marine biodiversity, and a desire for an authentic experience. Whether you’re new to diving or a seasoned snorkeler, the combination of guided exploration and stunning scenery makes this a compelling choice.


The Marietas Islands are rightly famous worldwide, thanks to Jacques Cousteau’s acclaim and their status as a protected marine reserve. For visitors, this means encountering not only vibrant fish and coral but also a geologically fascinating landscape of volcanic reefs. We loved the way this tour combines biodiversity with a scenic boat ride—two experiences in one that make for a well-rounded adventure.
On this tour, you’ll depart Sayulita in the morning, just a short ride from the bustling surf town to the quiet, teeming islands. The boat ride itself is part of the charm, giving you a glimpse of Banderas Bay’s peaceful waters before the underwater exploration begins.
Looking for more options in Sayulita? Here are some other experiences worth considering.
Departure from Sayulita:
At 9:00 am, your guide meets you at the designated starting point in Sayulita. The small group (max 7 travelers) means you won’t be lost in a crowd, which is especially appreciated if you prefer a more personalized experience.
Boat to the Islands:
The approximately 4-hour tour includes the boat ride from the coast to the islands. Expect a scenic cruise with opportunities to spot dolphins or other marine life, as noted by visitors who appreciated the chance to see lots of fish and even octopuses during their time in the water.
Underwater Exploration:
Once at the islands, you’ll enjoy two immersions—these could be snorkel or scuba depending on your certification and comfort level. All equipment is provided, so you don’t need to worry about lugging gear along. Many travelers mention the unparalleled conditions for snorkeling—warm water, clear visibility, and abundant marine life.
Biodiversity and Landscape:
The islands are a haven for beginners and experienced divers alike, thanks to their diverse geography and ease of access. Along With the vibrant fish, you might see eels or even an octopus, as one reviewer happily reported. The volcanic rock formations and the chance to glimpse the famous Hidden Beach (though not necessarily part of this specific tour) add to the overall appeal.
Return Trip:
The tour concludes back at the meeting point in Sayulita, giving you a good half-day of exploration without the afternoon drag.
Guides and Equipment:
The guides are frequently praised for their knowledgeability and friendliness. As one reviewer put it, the crew was “very friendly, knowledgeable, and accommodating,” making even nervous first-timers comfortable. You’ll be provided with all necessary gear, ensuring a hassle-free experience.
Marine Life & Scenery:
Expect to see a variety of fish, eels, and marine mammals, with some travelers mentioning dolphins and blue-footed boobies as extras. The warm water makes snorkeling pleasant even in September, and the clarity of the water enhances the visual spectacle.
Group Size & Safety:
Limited to 7 travelers, the small group promotes individual attention and safety. The tour operator also reserves the right to refuse service if someone shows signs of intoxication or has health issues, reinforcing safety as a priority.
At approximately $183 per person, this tour offers good value given what’s included: boat transport, two immersions, dive equipment, bottled water, and a professional guide. Compared to similar experiences, paying a set fee for everything simplifies budgeting and ensures you won’t encounter hidden costs.
Many travelers, like Janet, appreciated the overall quality and professionalism of the guides, which enhances the value. The small-group format makes the experience more intimate, and the marine environment offers opportunities for memorable photos and encounters.
Booking & Cancellation:
The tour is usually booked about a month in advance, and free cancellation is available up to 24 hours prior, giving some flexibility. However, weather can impact availability—poor conditions may lead to cancellations or rescheduling.
Physical & Medical Restrictions:
Diving or snorkeling within 48 hours of flying isn’t recommended. Participants are asked to complete a health questionnaire, and those with certain medical conditions might be restricted from diving. It’s suitable for travelers with moderate physical fitness who are comfortable in water.
Child & Group Policy:
Children must be accompanied by an adult, making this a family-friendly option for those with young snorkelers or divers.
If you’re seeking an authentic marine experience in a World Heritage site setting, this tour fits the bill. It’s ideal for beginners wanting guidance in a safe environment, but also satisfies experienced snorkelers and divers eager to explore the biodiversity around the islands.
The personalized small-group format is perfect for travelers who prefer a more intimate, less commercialized outing. For those who prioritize professional guides and all-inclusive pricing, this tour offers peace of mind.
On the other hand, if you’re prone to seasickness or have medical conditions that restrict diving, check with the provider beforehand. Also, keep in mind that weather conditions can influence the experience, and cancellations are possible.
This Scuba Diving Marietas Islands tour provides a balanced mix of marine adventure, scenic beauty, and hassle-free logistics. It’s especially suited for those who want a guided, small-group experience that highlights the best of Banderas Bay’s underwater world. The inclusion of all gear and the praise for knowledgeable guides create a sense of security and value, making it a worthwhile addition to any Mexico itinerary.
For anyone eager to see vibrant fish, volcanic landscapes, and perhaps a dolphin or two, this tour offers a reliable, memorable way to enjoy Sayulita’s famous marine environment. Whether you’re a seasoned diver or a curious snorkeler, you’ll find plenty to love here—just remember to book in advance and keep an eye on the weather forecast.
“I had two days of excursions with Oceano Adventures. First day I went diving and the second day I went snorkeling and entered the Hidden Beach. Bot…”
What is included in the tour price?
You get boat transport, two immersions, all dive equipment, bottled water, and a professional guide.
How far in advance should I book?
Most travelers book about 32 days ahead, ensuring availability during peak times.
Is the tour suitable for children?
Children must be accompanied by an adult, making this tour family-friendly, especially for young snorkelers.
What should I bring?
Bring a towel, sunscreen, and a swimsuit. All dive gear is provided, so no need to pack your own.
Will I see marine animals?
Many travelers report seeing fish, eels, octopuses, and sometimes dolphins or boobies, thanks to the rich biodiversity.
What about safety?
The guides are knowledgeable, and safety is a priority. Participants must complete a health questionnaire, and the tour may refuse service if safety concerns arise.
Can I cancel if my plans change?
Yes, free cancellation is available up to 24 hours before the scheduled start.
Is this tour weather-dependent?
Yes, tours may be canceled due to poor weather, but you’ll be offered a different date or a full refund.
In the end, this tour offers a well-rounded, enjoyable experience for those eager to explore Mexico’s stunning underwater landscapes without the hassle. It’s a chance to see vibrant marine life, learn from friendly guides, and enjoy a scenic boat ride—all in a compact, manageable half-day.