Reviewed · PUERTO VALLARTA TOURS
Private Marietas Snorkeling Tour – Hidden Beach Access Guaranteed
Entering Hidden Beach means swimming through a low cave opening to reach a secluded strip of sand inside the Marietas Islands. You get only about 20 to 25 minutes there, but the setting is extraordinary. The private boat also gives your group a more personal pace, with time for snorkeling and help fitting your gear.
I like the small-group format, capped at four people, and the careful attention to safety around the cave swim. I also like that the boat carries snacks, drinks, snorkeling gear, and a refill station, so you can focus on the water instead of packing a full beach kit.
The main drawback is cost. The $650 group price does not cover the MX$100 government fee per person or the optional Hidden Beach charge of MX$600 per person, payable in cash. The cave swim also demands calmness, decent cardio stamina, and comfort in confined water.
Key points before you book

- Hidden Beach access is optional: Pay MX$600 per person in cash for the cave swim and beach visit.
- The boat is private for your group: Up to four people share the tour, which allows a flexible pace and more direct help from the guide.
- Snorkeling depends on conditions: Water clarity can change with the sea and weather.
- The cave swim is physical: Hidden Beach access is for ages 10 to 65, with an adult required for anyone under 10 is not permitted.
- Bring identification and cash: Every person must show ID at check-in, and the extra government and Hidden Beach charges are not folded into the headline price.
- The islands are plastic-free: Bring a refillable bottle. Water and eco-friendly cups are available on the boat.
Why the Marietas Islands make a memorable half-day

The Marietas Islands sit off the coast of Puerto Vallarta and can be reached only by water. That alone gives the outing a different feel from a standard beach transfer. You leave the marina by boat, cross open water, and arrive at a protected island area known for unusual rock formations, seabirds, and marine life.
The tour lasts about four hours, so it fits neatly into a morning or afternoon without taking over your entire day in Puerto Vallarta. You are not signing up for a long expedition, but the time is enough for a scenic boat ride, guided snorkeling, and, if you choose it, the short swim into Hidden Beach.
The islands are protected, and the included conservancy donation to Bahia Unida, CONANP fee, and national park permits help cover the required park-related costs. The conservation rules also shape the visit. The area is plastic-free, so you should carry a refillable bottle rather than disposable water.
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Starting at Marina Vallarta

You meet at Tours Eco Explorer VallartaProa 22 in Marina Vallarta, Puerto Vallarta. After check-in, the guide welcomes your group, confirms the arrangements, and supplies the snorkeling equipment.
You must bring identification. The operator states that every person needs to show ID at check-in, and anyone without it will not be allowed on the boat. This is the sort of small rule that can ruin an otherwise well-planned outing, so keep your identification easy to reach.
Once everyone is ready, you walk to the pier and board the boat. Since this is a private outing for up to four people, you are not sharing the vessel with a large crowd. That matters most when you need help with a mask, snorkel, or life jacket, or when your group wants to spend a little more time getting comfortable before entering the water.
The tour is offered in English and operates daily except Monday. Hidden Beach visits are available Tuesday through Sunday only. If the beach is the main reason you are booking, check the day carefully rather than assuming every departure includes it.
The boat ride to Islas Marietas

The journey to the islands is part of the pleasure. You get open-water views on the way out, with the chance of seeing seabirds and, at some times of year, whales. A report from one outing specifically noted whale watching along with snorkeling, but wildlife is never guaranteed.
The boat ride also gives you time to settle into the outing. Your guide can explain how the snorkeling portion works and make sure your equipment fits before you reach the islands. That preparation is useful because a leaking mask or loose snorkel can distract you from the marine life once you are in the water.
The boat carries simple refreshments: apples, bananas, a sandwich, and soda. Lunch is not included, so think of this as a snack-level meal rather than a full midday spread. The refill station and eco-friendly cups help you stay hydrated without bringing single-use plastic.
Guided snorkeling in protected water

At the Marietas Islands, the main scheduled stop is Islas Marietas. You snorkel with the guide in clear water when conditions allow, looking for marine life around the protected island area. The guide can help secure the equipment and point out things that are easy to miss when you are only watching the surface.
One especially useful detail is the hands-on gear help. The guide does not simply hand you a mask and send you over the side. You receive instruction on securing the snorkel equipment, which is helpful for children, first-time snorkelers, and anyone who has had trouble with masks fogging or filling with water.
Do not book this expecting perfect visibility every time. Water clarity changes with weather and sea conditions. Crystal-clear water is possible, but wind, waves, or stirred-up water can reduce what you see. The protected setting remains appealing, though the quality of the snorkeling is partly out of the operator’s control.
The private format is valuable here. If one person in your group is a new snorkeler, the guide has more room to give that person attention. If another person is already comfortable in the water, the pace can be adjusted without forcing an entire busload of people to wait.
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Swimming through the cave to Hidden Beach

Hidden Beach is the tour’s headline feature, and it is not simply a beach reached by walking off the boat. You may wait for your scheduled turn, then swim through the cave entrance to reach the sand on the other side.
The opening is low at one point, and you need to keep calm, swim with control, and follow the guide’s instructions. A breaststroke works well for getting through the narrow section, and you need enough cardio stamina to manage the short passage without panic.
Once you clear the lowest point, the cave opens up and the beach comes into view. The swim itself takes only seconds for a confident person, but the confined entrance can feel intense if you dislike enclosed spaces or are uneasy in open water.
You get approximately 20 to 25 minutes inside. That is enough time to swim, sit on the sand, take photos, and enjoy the unusual setting, but it is not a long beach break. The time limit is part of the protected area’s controlled access, so do not expect to settle in for an afternoon.
The most useful advice is simple: stay calm. One outing showed how much emotional control matters, with some people looking frightened while entering or leaving. The low opening is short, but nervous movements make the passage harder. Listen closely, move steadily, and be honest with yourself before paying for this portion.
Hidden Beach access is available for people age 10 and older, and anyone under 10 cannot take part. The recommended maximum age is 65. The operator also does not permit pregnant women on the tour and does not recommend participation for anyone under the influence of drugs or alcohol.
What the private format is really worth

The $650 price covers the entire group of up to four, not four separate tickets. Split four ways, that is $162.50 per person before the extra fees. For a couple, the effective price is $325 per person, and for one person it is the full group rate.
That calculation is central to the value. A group of four gets the strongest deal because you share the private boat cost. A couple may still prefer it if privacy, personal attention, and a flexible pace matter more than finding the lowest possible per-person fare.
The price includes the boat ride, snorkeling equipment, conservancy donation, CONANP fee, national park permits, snacks, and soda. It does not include lunch, the MX$100 government fee per person, or the MX$600 Hidden Beach entrance fee per person.
For four people choosing Hidden Beach, the additional charges total MX$2,800, before the separate $650 tour price. For two people, the Hidden Beach charge is MX$1,200, plus MX$200 in government fees. Carry Mexican pesos in cash because the Hidden Beach payment is cash only.
The private setup is most worthwhile when your group values direct support. The guide and captain can pay attention to your equipment and comfort rather than managing a large mixed group. A family of four or a small group of friends gets the clearest value.
Fitness, comfort, and the cave question

You should have a moderate level of physical fitness for the tour. Snorkeling requires comfort in the water, and Hidden Beach adds a short but demanding cave passage. You do not need to be an athlete, but you should be able to swim steadily and remain composed in a tight opening.
The cave is not a good match for anyone who panics in enclosed spaces. If you are unsure, you can still enjoy the boat ride and snorkeling without choosing the Hidden Beach activity, since that portion is optional.
A good plan is to decide before check-in, then tell the guide about any concerns. The guide can explain the process and help you understand what to expect. You should not wait until you are at the cave entrance to discover that the swim is more physical than you wanted.
The operator recommends the tour for people age 10 and older. Pregnant women are not permitted, and the Hidden Beach activity is not recommended above age 65. The tour also excludes people under the influence of drugs or alcohol, a sensible rule for a water activity with a confined passage.
Timing, weather, and practical planning

The tour takes about four hours and returns to the same Marina Vallarta meeting point. It is near public transportation, which makes the marina reasonably practical to reach from around Puerto Vallarta.
Weather matters. If poor weather forces cancellation, you can receive a different date or a full refund. The same applies if the minimum number of participants is not met. Normal cancellation is free up to 24 hours before the start time, but cancellations or changes inside that window are not refunded or accepted.
Book ahead if the date matters. The activity is booked an average of 27 days in advance, so last-minute availability may be limited, especially for a private group of four. It is also wise to confirm the departure timing if you are arriving by cruise ship. The operator specifically asks cruise passengers to verify arrival time in Central Time.
The mobile ticket is convenient, but it does not replace the ID requirement. Bring the ticket on your phone, your identification, Mexican pesos for the extra charges, swimwear, and a refillable water bottle.
Who gets the most from this outing
I would point this tour toward a family or small group of friends who want a private day on the water rather than a crowded group cruise. Four people sharing the price get the best financial value, and the private format makes the outing easier for mixed-ability groups.
It also suits you if Hidden Beach is a priority and you want a guide close by during the cave swim. The guide’s help with snorkeling equipment is another plus for beginners.
I would be more cautious if you want a long beach stay, a full lunch, or guaranteed clear water. The beach visit lasts only 20 to 25 minutes, lunch is not included, and visibility changes with the weather. I would also skip the Hidden Beach portion if confined spaces or swimming under a low rock opening make you anxious.
The rating is 4.8 from 82 reviews, with 94 percent recommending the activity. That lines up with the strongest practical features: a friendly guide and captain, careful attention in a very small group, good support with snorkeling gear, and a memorable cave swim for people who remain calm.
Should you book the Marietas snorkeling tour?
Book it if you want a private four-hour outing with guided snorkeling and a real chance to enter Hidden Beach through its cave. The small group, included gear, snacks, park-related fees, and direct guide support make the package useful, especially when four people share the base cost.
Before paying, add the MX$100 government fee per person and the MX$600 cash Hidden Beach fee per person. Then ask yourself two questions: Can everyone in the group swim calmly through a short, low cave opening, and are you comfortable with only 20 to 25 minutes on the beach?
If the answer is yes, this offers an unusual island outing with a strong sense of adventure. If not, choose the snorkeling and boat ride without Hidden Beach access. You can still see the Marietas Islands and enjoy the water without forcing the most demanding part of the day.
FAQ
How much does the private Marietas snorkeling tour cost?
The tour costs $650 per group for up to four people. A MX$100 government fee per person is not included.
Is Hidden Beach access included in the price?
No. Hidden Beach access is optional and costs MX$600 per person. Payment is cash only.
How long does the tour last?
The tour lasts approximately four hours and ends back at the Marina Vallarta meeting point.
What is included?
The price includes the boat ride, snorkeling equipment, a conservancy donation to Bahia Unida, the CONANP fee, national park permits, apples, bananas, a sandwich, and soda.
What age is allowed for Hidden Beach?
The minimum age for Hidden Beach is 10, and anyone under 10 is not permitted to take part. The recommended maximum age for that activity is 65.
Do I need to bring identification?
Yes. Every person must show identification at check-in. Anyone who does not present ID will not be allowed to board.
What happens if the weather is bad?
If poor weather causes cancellation, you will be offered a different date or a full refund. If the minimum number of participants is not met, you will also be offered a different date or experience, or a full refund.
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