Two islands, one boat, and serious wildlife. I like how this Puerto Vallarta outing mixes Marietas snorkeling with underwater time at Los Arcos de Mismaloya, plus the real-world chance of seeing dolphins, turtles, mantarays, and even whales.

What really makes it work for me is the human factor: you get organized help with your gear and coaching that keeps first-timers calm. In the water, the staff I’ve seen named here like Eric, Carlos, Nahum, and Javi are the kind of guides who explain clearly and stay close—so you’re not left to figure things out solo.

One thing to keep in mind: visibility can vary. One person caught great clarity at Los Arcos, but another described murkier water there and said Marietas was the better day for what they wanted to see.

Key highlights you should care about

• Marietas focus on skills first: they set you up with snorkel gear and teach you how to use it plus life jackets for comfort and safety.
• Optional Hidden Beach add-on: you can pay extra for a visit to a famous sand spot, with a stated deposit refund if access is blocked by availability or weather.
• Los Arcos fits different levels: it’s set up for practice, with shallower options around 20 ft and deeper features for advanced folks.
• Small maximum group size: up to 14 people, which usually means less waiting around and more attention.
• Named instructors and steady support: the reviews highlight patient coaching from guides including Eric, Carlos, Nahum, and Javi.
• Wildlife on the route: dolphins show up right around the marina area, and in winter you might see whales and other animals on the way out.

Marietas Islands snorkeling and the optional Hidden Beach

Your day starts on the water route toward Marietas Islands. You leave around 9:00 am from Marina Vallarta, and even before the islands, there’s a little show: the ameca river area is a common spot to spot dolphins early, sometimes like they’re already in breakfast mode.

Once you arrive, the plan is snorkel-first. You’ll get snorkel equipment and a quick lesson on how to use it, plus life jacket guidance. That matters more than you might think. Snorkeling in currents and changing surface conditions is easier when you’re given a simple routine for breathing and staying balanced.

Marietas also offers the extra time and structure that can help non-snorkelers feel confident fast. You’re not just thrown in with a mask and hope. You’ll also get safety and in-water tips aimed at making the activity more fun and not frantic.

Then there’s the Hidden Beach option. If you want that iconic cove, it’s an add-on for $25 and paid via a cash deposit during check-in time. The important part: the operator states they refund your deposit if you can’t access it due to availability or weather conditions. They also claim 99% of visitors get in without problems, which is reassuring if you’re paying for the experience rather than gambling on the day.

Heads-up on how to think about this add-on: Hidden Beach is optional, meaning you’re paying for a specific outcome. If ocean conditions or scheduling don’t line up, you’ll still have the main Marietas snorkeling experience. I like having that split because you’re not risking your whole trip on one extra stop.

On the way out: dolphins, turtles, mantarays, and winter whales

This is one of those trips where the boat ride is part of the appeal. The itinerary is built around wildlife sightings along the route both to and from the islands.

Here’s what you should take seriously: there’s a seasonal vibe. The schedule specifically calls out that during winter, the ocean can produce strong wildlife sightings on the way out—dolphins, turtles, mantarays, and whales are all mentioned as possible.

Even when wildlife doesn’t show up on cue, the route itself tends to be scenic and active. One person also described a big dolphin escort back on the way out to their boat, with the captain stopping so photos were possible. That’s not something you can plan for, but it’s exactly the sort of moment that makes a shorter 4–6 hour day feel longer in the best way.

If your priority is whales, don’t assume it’s guaranteed. But do know that the crew is watching the water and timing the outing so you’re not just cruising in silence. That’s the difference between a boat ride and a wildlife-focused trip.

Los Arcos de Mismaloya: underwater time for practice and real depth

After Marietas, you head to Los Arcos de Mismaloya National Park for your main underwater time. The schedule is about 1 hour 30 minutes at Los Arcos, with park admission included.

Los Arcos is a strong choice because it supports different comfort levels. The itinerary notes it’s perfect for beginner-style underwater practice and also works for more experienced people. That lines up with what I’d expect from a national park site that has both shallow practice opportunities and deeper wall structure.

You should know the depth range they advertise:

• Around 20 ft for practice and certifications
• A wall noted at about 1600 ft for tech divers

So if you’re new, you’ll likely stay in the safe, training-friendly zone. If you’re already certified and want the dramatic features, the site has the structure for you to go farther down (within your comfort and certification limits).

One practical reality: visibility can be inconsistent. One person reported murkier water at Arcos and said they saw much more on the Marietas side. Another person described around 30 ft visibility at Los Arcos with lots of marine life. Translation: Los Arcos is a great site, but you can’t promise crystal-clear water every time.

If you’re the type who cares about seeing lots of critters, I’d treat this as a two-site “compare and catch the best conditions” plan. Marietas often shines for surface-and-near-surface life, while Arcos can be amazing when clarity is good.

Your crew matters: patient coaching from Eric, Carlos, Nahum, Martin, Rodrigo, and Javi

This trip is priced like a real experience, but what justifies it day-to-day is the crew’s role in keeping you safe and relaxed.

Across the names mentioned here, the pattern is consistent:

• Patient instruction for nervous first-timers
• Hands-on help with outfitting so you don’t wrestle gear
• Clear pre-session talks that reduce the mental load
• Close guidance in the water so you can actually enjoy what you’re seeing

I especially appreciate the way the coaching is described for anxious beginners. One person said they couldn’t find a steady breathing rhythm at first, and the staff stayed patient until things clicked. That’s huge. Scuba comfort is mostly mental early on. When the guide keeps things calm and simple, your body follows your brain.

I also like that the captain shows up as part of the experience. Names tied to boat leadership here include Martin, and the vibe is that they’ll adjust the ride when wildlife is active—like stopping when dolphins come close to the boat.

On the underwater side, the guides named here—Eric, Carlos, and Nahum—were highlighted for being descriptive, attentive, and focused on safe pacing. And guides mentioned such as Rodrigo and Javi show up in the same theme: making the trip feel like a team effort, not a production line.

Price and extras: what $125 covers, and what can cost more

At $125 per person, this trip can look like a bargain if you compare it to what many Puerto Vallarta scuba or snorkeling outings charge just for boat transport and basic equipment.

What’s included:

• Life vest
• Boat ride
• Box lunch
• CONANP (federal government) fee
• Conservancy donation fee for Bahia Unida
• Permits for the national park
• Bottled water
• Scuba equipment use

That’s a lot of “annoying extras” bundled in. Fees and permits can quickly add up on their own. So the headline price feels fair because it already accounts for the legal and environmental costs tied to these protected areas.

What’s not included (important for budgeting):

• Beginner scuba class: $25 per person
• Government fees: $6 per person

Then there’s the optional Hidden Beach add-on at $25 with the deposit system described earlier.

A lunch note, because it affects your comfort: one person said they received a fruit piece plus a ham and cheese sandwich. They still recommended bringing your own food if you want more variety or if you tend to get hungry fast. I’d take that as permission to pack a snack or two if you’re the type who likes options.

Also, a quick practical point from real-world notes: people are advised to have cash for fees and gratuities, but one reviewer described the ability to charge with a 5% credit card fee. If you prefer simple math, bring a mix of cash and card so you’re not stuck.

What the timing really feels like (9:00 am start, 4–6 hours total)

The schedule is built around a half-day rhythm:

• Depart around 9:00 am
• Return to the same meeting point
• Total time typically 4 to 6 hours

That timing matters because it keeps the day from swallowing your whole vacation. It also helps you plan other things later—like a beach dinner, a quick stroll, or just resting your legs without dragging a full-day tour behind you.

At Marietas you’re there long enough to snorkel, get gear support, and do the optional hidden beach choice if you want it. Then you switch over to Los Arcos for a focused underwater session.

If you’re scheduling, this is also one of those tours where the “start on time” energy matters. The crew has a window to access locations and match conditions, so plan to arrive a few minutes early.

Where you meet, and who should sit this one out

You meet at Marina del Rey Condominium, Proa 22, Marina Vallarta, 48335 Puerto Vallarta, Jal., Mexico. The tour ends back there.

This is also a trip with a real physical side. The guidance says moderate physical fitness is needed. It’s not for everyone:

• People under the influence of alcohol or any drug are not permitted
• Not recommended for those with heart disease
• Not recommended for people with back, spine, or knee problems

Minimum age is recommended 10 years, and that’s a good signal that the activity can be structured for younger participants who can follow directions.

One more certification detail that drives your plan:

• Marietas Islands: you must have scuba certification for the scuba portion there.
• Los Arcos: the activity is described as welcoming for all levels, including those doing practice and certification-style training.

So if you’re not certified, you may need the beginner scuba class add-on mentioned earlier.

What to pack so the day feels easy

Even when equipment is included, comfort depends on what you bring.

Based on what’s described here, I’d plan for:

• A swimsuit and something you can change into fast
• Sunscreen and sunglasses
• A small towel
• Cash for any add-ons like Hidden Beach, plus potential fees or gratuities
• If you get cold easily: consider bringing a layer for the boat ride

Water temperatures can be a bit of a surprise. One person noted it was a little chilly and that the crew offered an extra wet suit. Another said they were provided a spring suit or shorty. You might get help with temperature, but I’d still assume you’ll appreciate a backup plan.

And don’t forget: if you want your lunch to be more satisfying, bring an extra snack. The provided box lunch can be simple.

Should you book this Puerto Vallarta Marietas + Los Arcos tour?

If you want a scuba day that balances wildlife chances with real instruction, I think this is a solid pick—especially if you’re nervous and want patient coaching. The mix of guides named here and the way they’re described in the water gives you a strong “you’re not on your own” feeling.

Book it if:

• You want Marietas snorkeling plus underwater time at Los Arcos
• You value small group energy (max 14)
• You’re excited about the chance of dolphins and whales, not just coral and fish
• You’d rather have a structured experience than a hands-off excursion

Skip it (or consider alternatives) if:

• You’re highly sensitive to variable visibility and need consistently clear water for your top priority
• You have health limits like heart disease or issues involving back/spine/knees
• You’re not comfortable with the idea of extra costs for a beginner class or the Hidden Beach add-on

Bottom line: this tour looks like good value because it bundles equipment, boat time, lunch, and several park-related fees into one price. And when the guides are as patient as they’re described here, you’re much more likely to have a calm, memorable day in the water.

FAQ

How long is the Puerto Vallarta Marietas and Los Arcos experience?

The duration is about 4 to 6 hours.

Where is the meeting point and when does it start?

You meet at Marina del Rey Condominium, Proa 22, Marina Vallarta, and the tour starts at 9:00 am.

What sites are included during the tour?

The experience includes Marietas Islands and Los Arcos de Mismaloya National Park.

Is the tour offered in English?

Yes, it’s offered in English.

Do I need scuba certification for Marietas Islands?

Yes. The Marietas Islands scuba portion requires you to be certified.

Is Hidden Beach included, or is it optional?

Hidden Beach is optional. It has an extra cost of $25, and you pay a deposit in cash during check-in.

What is included in the price?

Included items are life vest, boat ride, box lunch, CONANP federal fee, conservancy donation fee for Bahia Unida, permits for the national park, bottled water, and use of scuba equipment.

What extra costs might I have to pay?

A beginner scuba class is $25 per person if needed, and government fees are $6 per person. Hidden Beach is another $25 add-on.

What are the minimum age and fitness requirements?

Minimum age is recommended at 10 years, and you should have a moderate physical fitness level.

What happens if weather is poor or the tour is canceled?

The experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund. Free cancellation is available up to 24 hours in advance for a full refund.