Ocean life comes early in Puerto Vallarta. I like that you get professional, hands-on help from guides who keep things calm, and I also love the chance to see big animals around Marietas, including dolphins and whales depending on season. One thing to consider, though, is that water clarity can vary, and Los Arcos can feel more muted on some days.

This is a smart half-day format if you want more than a boat ride. You’re on the water from about 9:00 am out of Marina Vallarta, the group is capped at 14, and you’ll be set up with life vests, scuba gear (for the scuba part), and a box lunch.

The biggest practical difference is the certification rule: Marietas Islands require you to be a certified diver for the scuba portion, while Los Arcos works for beginners as well. If you are not certified, you’ll want to plan around that and confirm what you will do on each stop.

Key things I’d focus on before you go

• Two places, two vibes: Marietas for snorkel-style water time and optional hidden beach, plus scuba only if you’re certified, and Los Arcos for beginner-friendly underwater practice.
• Small group, more attention: a maximum of 14 people helps the guides keep an eye on you.
• Price covers a lot of the hard parts: boat ride, lunch, bottled water, park permits and fees, and use of scuba equipment are included.
• A Marietas hidden beach option with a deposit warranty: the extra $25 includes a deposit that can be refunded if access or weather blocks it.
• Wildlife timing matters: in winter you can get stronger chances for dolphins, manta rays, turtles, and whales on the way out.
• Your comfort depends on expectations: some days visibility at Los Arcos is reported as murky, but conditions can also be great.

Price and logistics: what the $125 really buys

At $125 per person, this outing is priced like a true excursion, not just a basic boat rental. Your money goes toward the boat ride, box lunch, bottled water, life vest use, national park permits, and key federal and conservation fees. You also get the scuba equipment used for the scuba portion, so you are not spending time sourcing gear or dealing with someone else’s sketchy setup.

You might still want to budget for what is not included: a beginner scuba class is $25 per person, and there is a government fee listed at $6 per person. If you are already certified, you can often treat the scuba part as a guided underwater session, then focus your energy on being relaxed and listening.

Timing is also part of the value. You start at 9:00 am from Marina Vallarta, and the whole experience runs about 4 to 6 hours, which is a nice sweet spot when you want time outdoors without losing an entire day.

Leaving Marina Vallarta at 9:00 am, then finding the animals fast

Your meet-up point is Marina del Rey Condominium, Proa 22, Marina Vallarta (48335 Puerto Vallarta, Jal.), and you depart around 9:00 am. Once you head out, you pass the Ameca River area in about 10 minutes, and that’s often when the boat ride turns into wildlife viewing.

On seasonal winter days, the route can feature animals “having breakfast,” including dolphins near the surface. Even if you do not see them immediately, this early start matters. You are not waiting hours for the first wow moment, and the guides can steer the plan around what the bay is giving that morning.

The group rides comfortably and stays small, and that helps with one practical thing: you get clarity on what to do next. You will also get snorkel gear and guidance for the snorkeling portion, plus life jacket instruction and in-water tips that aim to improve your comfort.

Marietas Islands: snorkel skill-building, the hidden beach option, and the certification rule

Marietas is the stop where the trip feels most like an “event,” especially if you do the optional beach. You arrive after about the first hour, and there’s usually plenty to do before you even touch the water, because the team sets you up and walks you through what to expect.

For people who are doing snorkel-style water time, you’ll get snorkel gear and a quick lesson on how to use it, plus life jacket support. You’ll also receive information meant to improve in-water skills, so you spend more time enjoying and less time fiddling.

Here is the key rule to understand before you book: Marietas Islands scuba requires you to be a certified diver. If you are not certified, you should assume your underwater scuba time will not happen at Marietas, and you should plan for the snorkel portion instead.

The hidden beach add-on (and why the deposit warranty is worth noting)

There is an optional hidden beach visit at Marietas, tied to access and conditions. It costs an extra $25 per person, and the deposit is collected in cash during check-in in the morning.

The important part is how it’s handled: if you cannot enter because of availability or weather, your deposit is refunded. The trip also states that 99% of visitors are able to enter without issues, which is a big deal when you are paying extra for a once-in-a-spot type of experience. If that hidden beach is on your wish list, this is the kind of policy that makes the risk feel smaller.

Los Arcos de Mismaloya: the beginner-friendly underwater practice zone

Los Arcos de Mismaloya is where the tour shines for people who want actual underwater learning or certification practice. This is in the Los Arcos National Park area, and it’s described as a place suitable for both beginners and experienced divers.

The underwater depths are part of why. You get options starting around 20 ft for practice and certification work, and there’s also a dramatic deeper wall reaching up to 1,600 ft for more technical diving. You do not need to be technical to enjoy the site, but knowing that depth range exists helps explain why the location works across skill levels.

What to expect on day-of conditions

A practical note: water clarity can be inconsistent. One recent experience described murkier water at Arcos with less to see, while another day at Marietas was much clearer. That’s not something you can control, but it helps you set expectations.

If you are going for wildlife sightings, Arcos can deliver lots of fish life and critters. If you are going for maximum visibility, your odds improve when conditions cooperate. Either way, the guide support is a large part of your experience, and that’s a recurring theme in the feedback.

Wildlife sightings: planning around winter, not just hoping for luck

This trip is built around wildlife, not just scenery. In winter, the water can offer stronger chances for dolphins, turtles, manta rays, and whales during the journey out to the islands. It also means you may see animals even before you get in the water, which changes the energy of the day.

Scuba and snorkeling are where you get the “under” part, but the surface sightings are often the first highlight. Several experiences point to dolphins passing the boat on the ride back, sometimes in very large groups. On calm mornings, that can turn your boat ride into a show.

Whale possibilities are also mentioned. One account specifically noted hearing humpback whales, which is a reminder that you can experience marine life with more than just your eyes.

My advice: treat wildlife as a bonus, but still prepare like it is the main course. Bring sunglasses and reef-friendly protection for the boat ride, and be ready to switch from sightseeing mode to gear mode fast.

The guides and the calm, practical approach that makes first-timers work

The crew is repeatedly praised for patience and friendliness, which is exactly what you want if you feel nervous. If you are new to breathing equipment underwater, your biggest struggle is often mental rhythm, not technique. You’ll get instruction and assistance meant to keep you steady and safe while you get used to your body’s new timing.

Recent experiences named guides including Carlos, Eric, Nahum, and additional staff like Rodrigo and Martin (captain). The consistent thread is that the team stays present and helps you with setup so you are not wrestling gear by yourself.

Boat comfort also matters. More than one report described a roomy, comfortable boat, and that may sound minor until you realize you are spending a chunk of your day in open water before the underwater time begins.

What’s included, what’s not, and how to avoid surprise costs

Included in the tour price:

• Life vest use
• Boat ride
• Box lunch
• Bottled water
• CONANP (federal government) fee
• Conservation donation fee to Bahia Unida
• National park permits
• Use of scuba equipment (for the scuba portion)

Not included:

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

A smart way to think about this: you are paying for access, permissions, and the on-water team, not just the gear. That’s why the $125 can feel reasonable compared to other add-on-heavy packages.

Also, do not assume everything is fully cashless. One report notes that cash might be requested for fees or gratuities, but card payment may be possible with a 5% credit card fee. I’d plan to have both options available so you do not end up stressed mid-day.

Your best packing list for a smoother morning

You can keep packing simple, but bring the basics that match this kind of water day.

Bring:

• Your own mask if you have one (the tour can provide masks if you need them)
• Quick-dry clothes for after you get out
• Sunscreen and sunglasses for the boat ride
• A small bag you can keep dry on the water

You might want to bring your own food too. One report described the provided box lunch as a ham and cheese sandwich plus fruit, and advised bringing extra food. Box lunch is included, so you are covered, but your appetite might decide how “enough” it feels.

Water temps can be cool. One experience mentioned a spring suit or shorty being provided, and another noted it being a little chilly, with a warm crew helping you feel comfortable. Pack a mindset for cool water, even in a sunny place.

Who this works best for, and who should rethink it

This outing is a good fit for people who want a guided marine experience with structured instruction, not just a casual snorkel. It also suits mixed groups, because there’s a split between snorkel-style water time and scuba time depending on certification and comfort.

You should have moderate physical fitness. The minimum age recommended is 10, and it’s not for you if you have certain medical issues like heart disease or back, spine, or knee problems.

And please take the rules seriously: people under any influence of alcohol or drugs cannot participate. That isn’t just policy, it’s a safety reality when you are handling equipment in open water.

If you are a beginner, Los Arcos is the more forgiving choice because it is described as suitable for beginner training and practice. If you are already certified and want the Marietas option, confirm your certification details ahead of time, since Marietas scuba has that requirement.

Should you book Eco Explorer Vallarta for Undersea Arcos or Marietas?

Book it if:

• You want a small group (max 14) and you value patient, hands-on instruction.
• You want both boat wildlife viewing and guided underwater time.
• You care about value, since park permits, federal fees, equipment use, lunch, and water are included in the base price.
• Marietas is calling to you, and you are comfortable with the certification rule.

Skip it or choose carefully if:

• You are counting on perfect visibility and you feel disappointed easily by murky water. Conditions can vary by site and day.
• You are not certified and you were hoping to do the scuba portion at Marietas. You can still enjoy the snorkeling part, but the scuba plan changes.

If you want a practical, instruction-first marine outing with the chance to see dolphins and bigger whales around Puerto Vallarta, this is the kind of day that works.

FAQ

What is the price for this Puerto Vallarta scuba and snorkel experience?

It costs $125.00 per person.

How long is the tour?

The experience runs about 4 to 6 hours.

Where do I meet the tour?

The meeting point is Marina del Rey Condominium, Proa 22, Marina Vallarta, 48335 Puerto Vallarta, Jal., Mexico, and the trip returns there.

What time does it start?

The start time is 9:00 am.

Is Marietas Islands scuba available for non-certified people?

No. The Marietas Islands scuba option requires you to be a certified diver. Los Arcos is described as welcoming all levels, including beginners.

What is included, and what should I budget for?

Included are items like the boat ride, box lunch, bottled water, life vest use, permits and fees, and use of scuba equipment. Not included are a beginner scuba class at $25 per person and a government fee of $6 per person.

What is the cancellation policy?

You can cancel for a full refund up to 24 hours before the experience start time. If you cancel within 24 hours, the amount paid is not refunded. If the trip is canceled due to poor weather, you are offered a different date or a full refund.