Marietas Islands Snorkel Tour & Hidden Beach

The best part of this Marietas Islands tour is the chance to swim through a rock tunnel into Hidden Beach, a small cove reached only from the water. The boat ride across Banderas Bay adds its own reward, with dolphins, turtles, manta rays, and winter whales sometimes appearing along the way.

I like the small maximum group of 16 and the careful in-water support from guides such as Rodrigo, Carlos, Rafa, and Emilio. I also like that the price covers boat transport, park permits, snorkel gear, life jackets, water, snacks, and a guide. The main catch is that Hidden Beach is not guaranteed, and the extra entrance charge is cash only.

Quick points to know before booking

• Hidden Beach is possible, not guaranteed: Limited permits, tide conditions, weather, and park rules affect access.
• The tunnel requires real swimming ability: You wear a life jacket, but the swim can be tiring and rough when waves push through the cave.
• Wildlife begins before the islands: Dolphins, sea turtles, manta rays, seabirds, and winter whales may appear during the boat ride.
• The snorkeling is enjoyable but variable: Some outings bring clear water and plenty of fish, while others may have murky or cool conditions.
• The $99 price covers the basics: Bring extra cash for the optional MXN 600 Hidden Beach entrance and the separate $6 government fee.
• This suits active visitors best: Snorkeling is for ages 6 to 70, while Hidden Beach access is limited to ages 10 to 65.

The boat ride from Marina Vallarta

You meet at Eco Explorer Vallarta, at Proa 22 in Marina Vallarta. The published information gives both 9:00 a.m. and 9:30 a.m. as departure times, so I would confirm the exact meeting time before you go. The tour returns to the same marina after roughly four to five hours.

The first part of the trip crosses Banderas Bay toward the mouth of the Ameca River. It takes about 10 minutes to reach that area, where dolphins sometimes feed in the morning. Keep your eyes on the water from the start. The wildlife sightings are not limited to the islands.

The ride to the Marietas takes about an hour, depending on sea conditions. During the winter months, this crossing can bring some of the tour’s best moments. Whales, dolphins, turtles, and manta rays have all been seen from the boat. You may also spot seabirds around the islands.

This is a speedboat outing, so expect spray, wind, and movement. The ride is scenic and fun, but it is not a calm harbor cruise. If you get motion sickness, take your usual precautions before leaving. The return ride can feel long after swimming, especially if the bay is choppy.

What the Marietas Islands offer

The Marietas Islands are protected as a national park, and access is controlled. Your fee includes the official park permits, a CONANP bracelet, and a conservancy donation to Bahia Unida. Those charges help explain why this trip costs more than a simple coastal boat ride.

You will see steep rock formations, sea caves, and small beaches shaped by the sea. The islands are not a place for unrestricted wandering. Most of your time is spent on the boat, in the water, or at the permitted beach area.

The setting is dramatic, but keep your expectations realistic. Hidden Beach is not a broad stretch of sand. It is a small beach enclosed by rock, and the main appeal is the unusual swim through the tunnel. If you expect a full beach day, you may find the stop brief. If you enjoy unusual access and striking photographs, it is likely to feel worthwhile.

Swimming through the tunnel to Hidden Beach

Hidden Beach is the tour’s main draw, but it is also the part that needs the clearest warning. The entrance is reached by swimming from the boat through a water tunnel. The operator provides life jackets and helmets, and guides assist with equipment and the route.

You need enough stamina to swim through a confined passage while waves move around you. A strong swimmer has an easier time, but even confident swimmers should ask about the tide and sea conditions before entering. One account describes high waves reaching the tunnel ceiling and making the passage frightening. Conditions can change, so do not feel pressured to go if the water looks unsafe or you are uncomfortable.

The guides have helped people who were anxious, tired, or not strong swimmers. One person who could not swim well received close support and felt secure in the water. That help is valuable, but it does not remove the need for you to judge your own limits.

The Hidden Beach stop usually allows about 30 minutes, including the swim through the cave and time on the beach. At low tide and with calm seas, the passage may be easier and the cave more pleasant to explore. At high tide or in rougher water, the experience may be shortened or skipped.

Access is optional and costs MXN 600 per person, paid in cash. It is not included in the $99 tour price. There is also a separate $6 government fee listed as not included. Bring enough pesos and ask the crew to explain the current conditions and all charges before you decide.

The age rules are strict. You must be at least 10 years old to enter Hidden Beach and bring identification for the minor and accompanying adult. The maximum age listed for Hidden Beach access is 65, with identification required. The general snorkeling tour is for ages 6 to 70.

Snorkeling around the islands

After the beach visit, the boat moves to a snorkeling area near the islands. The crew provides masks, snorkels, and life jackets, then explains how to use them. Guides remain in the water to help with equipment, point out sea life, and assist anyone who tires.

Expect tropical fish and decent visibility when conditions cooperate. Several outings have produced more fish than expected, along with clear water and enjoyable swimming. Other conditions have brought colder or murkier water, and one person found the snorkeling less impressive than the beach and boat ride.

That variation matters. This is not a coral reef trip on the scale of Hawaii, and the Marietas should not be sold as a guaranteed world-class snorkeling site. You can see colorful fish and marine life, but water conditions, season, and location affect the quality of the view.

I like the fact that two guides may be in the water with the group. That makes a difference for first-time snorkelers and families. You still need to be comfortable in the ocean, but you are not left to manage the equipment and route alone.

Allow about 45 minutes for the snorkeling stop, based on the timing described by the operator and past outings. Some trips may adjust the order of the beach and snorkeling stops to match the tide. That flexibility is sensible, especially when safe tunnel access depends on water level.

Food, water, and what to bring

This is a half-day tour, not a full-day beach excursion. The included food is light: fruit such as apples and bananas, plus a sandwich. Bottled drinking water and cups are provided, but you should bring a reusable bottle if possible.

The Marietas are plastic-free as part of the conservation effort. A reusable bottle is a practical choice, and it helps you avoid relying on disposable containers. Pack only what you need, since you will be moving between the boat and the water.

Wear a swimsuit and bring a towel, dry clothes, sunglasses, and a waterproof way to carry your phone. A long-sleeved UV shirt is especially useful. One booking note warns that sunscreen is not allowed because of concern for coral, so confirm the current rule before applying anything. Do not assume every standard sunscreen is permitted in the park.

The boat can be wet and windy. Secure hats and loose items, and expect spray during the crossing. The crew provides life jackets, but you should still bring clothing that dries reasonably fast.

Guides, group size, and safety

The tour is operated by Eco Explorer Vallarta and is offered in English. Guides named in the tour information and guest accounts include Rodrigo, Carlos, Rafa, Emilio, Alex, Chelsea, and Jonathan. Their roles can vary by departure, but the repeated strength of the operation is hands-on assistance in the water and clear explanations about the islands.

A maximum of 16 people keeps this from feeling like a very large excursion. It also gives the crew a reasonable chance to watch swimmers, help with masks, and manage the tunnel entrance. A private tour for up to four people can be arranged if Hidden Beach access matters greatly to you. The private option offers a better chance of securing the beach permit, though it still cannot change weather or sea conditions.

You must have a moderate level of physical fitness. Pregnancy is not permitted, and people under the influence of alcohol or drugs cannot join. If you are traveling with children, note the different age rules for general snorkeling and Hidden Beach.

The most important safety step is simple: ask before you enter the tunnel. Find out how high the tide is, how strong the waves are, how long the swim will be, and what the exit looks like. You can enjoy the boat ride and snorkeling without entering Hidden Beach if the conditions do not suit you.

Is the $99 price good value?

At $99 per person, the tour is fairly priced if you use the included services. You get transportation from Marina Vallarta, park permits, snorkeling equipment, life jackets, drinking water, snacks, a guide, and access to the island area. The wildlife sightings can also make the boat trip feel like more than simple transportation.

The value is weaker if you mainly want a long snorkeling session or a relaxed beach stop. Your total cost rises with the MXN 600 Hidden Beach charge and the separate $6 government fee. You also receive only light snacks, so do not book this expecting lunch.

I would compare the price with your priorities. If you want the unusual tunnel swim, small group support, and a chance to see whales or dolphins, the package makes sense. If you want guaranteed clear water, extensive reef snorkeling, or a full meal, look elsewhere.

Booking, cancellation, and practical limits

The tour is often booked about 18 days ahead, so reserve early during busy travel periods. You receive confirmation at booking unless you book within one day of departure, in which case confirmation depends on availability.

You can cancel for a full refund up to 24 hours before the start time. Cancellations or changes made within 24 hours are not refunded. Poor weather or failure to meet the minimum number of participants can lead to a new date, another experience, or a full refund.

The tour ends back at Marina Vallarta. It is near public transportation, but if you are arriving by cruise ship, confirm the arrival time in Central Time and leave enough room for the transfer to the marina and check-in.

Who should book this Marietas Islands tour?

I would choose this trip if you want a compact Puerto Vallarta outing with boat scenery, wildlife possibilities, snorkeling, and an unusual beach entrance. It works particularly well for couples, active families with older children, and visitors who like a bit of adventure without arranging every detail themselves.

You should be comfortable with open-water swimming and boat movement. If you are not a strong swimmer, the crew can help, but the tunnel is still a demanding part of the day. Families with younger children can join the snorkeling trip if they meet the minimum age, but children under 10 cannot enter Hidden Beach.

Should you book it?

Book this tour if the water-tunnel entrance is high on your Puerto Vallarta wish list and you understand that access depends on permits and conditions. The small group, included equipment, park fees, and active guides give you solid support, while the ride itself may bring dolphins, turtles, manta rays, or whales.

Skip it if you want guaranteed beach time, calm water, or top-level reef snorkeling. For the best chance at Hidden Beach, ask about a private tour for up to four people. For a group trip, keep your expectations flexible, check the tide before entering the cave, and treat the wildlife sightings as a bonus rather than a promise.

FAQ

How long is the Marietas Islands snorkel tour?

The tour lasts approximately four to five hours, including the boat ride, snorkeling, and possible Hidden Beach visit.

Where does the tour start and end?

It starts and ends at Eco Explorer Vallarta, Proa 22, Marina Vallarta, Puerto Vallarta. The listed start time includes both 9:00 a.m. and 9:30 a.m., so confirm the exact departure time before your tour.

Is Hidden Beach included in the $99 price?

Access to Hidden Beach is optional and costs MXN 600 per person in cash. That fee is not included in the $99 tour price, and access is not guaranteed.

What equipment and food are provided?

The tour provides snorkel equipment, life jackets, drinking water, cups, and light snacks. Snacks include fruit and a sandwich. A full lunch is not included.

What ages can join the tour?

The snorkeling tour is for ages 6 to 70. Hidden Beach access is for ages 10 to 65, with an adult required for minors and identification required for the minor and adult.

Can I cancel for a full refund?

Yes. You can cancel at least 24 hours before the start time for a full refund. Cancellations or changes made within 24 hours are not refunded. If poor weather or an insufficient number of participants cancels the tour, you can receive a different date, another experience, or a full refund.