Sea-tunnel swimming beats the usual beach trip. I love the guaranteed Hidden Beach access with a certified guide right there for the swim, and I also love the small group (max 8) vibe on the covered boat. One thing to think about first: the tunnel swim (80 to 100 meters) can feel intense if the sea is rough, and snorkeling can be affected during jellyfish season.

In about 3 hours, you’ll ride out from Punta Mita, swim to Playa Escondida for around 30 minutes, then snorkel with included gear and head to Playa Nopalera for more water time and cave exploring. You even get a waterproof way to bring your phone or camera, so you can focus on the experience instead of risking your gear.

Quick hits before you go

• Guaranteed Hidden Beach access with a guide accompanying you through the natural tunnel swim
• Small boat, small group (up to 8 people), which makes the day feel more controlled and personal
• Snorkeling gear included so you don’t have to pack or rent anything extra
• Playa Nopalera stop for swimming, walking, and checking out natural caves
• Phone-handling support with waterproof storage and guide photo help at the right moments

Marietas Islands from Punta Mita: the small-group rhythm that matters

This tour runs from Punta Mita and keeps the group tight. That changes the feel fast. With just a handful of people, you spend less time waiting around and more time actually moving through the day at a good pace.

The boat ride is short—about 15 to 20 minutes, depending on sea conditions. You’re not stuck on the water for hours. Still, it’s long enough to set expectations: the Pacific can be playful, and you’ll want to be ready for motion.

A big value point here is how much is bundled into the ticket. You get lifejacket, snorkeling equipment, non-alcoholic beverages, the covered boat, plus admission to Hidden Beach. And that waterproof phone/camera setup is more than a nice touch. It means you can take pictures without holding your breath the whole time.

The experience is offered in English, and the tour notes say limited spaces, so booking ahead is smart. In practice, this is exactly the kind of trip that sells out because people want the easier-to-manage group size and the real highlight: Hidden Beach.

The swim to Playa Escondida: 80–100 meters, tunnel currents, and real safety

Let’s talk about the main event. Access to Hidden Beach is not “walk from the shore and take a photo.” It’s a swim through a natural tunnel, typically 80 to 100 meters, and you do it with a certified guide.

You also don’t do this for the whole day. The stay on the beach itself is about 30 minutes. The short time helps keep the flow moving, but it also means you’ll want to make those minutes count—snap photos quickly, soak up the view, then get back on task.

What makes it special

Hidden Beach is hidden for a reason. The tunnel swim adds an adventurous edge that typical beach tours don’t have. And because the guide is right there, it feels more like guided adventure than risky freelancing.

Another thoughtful detail: the guide transports your phone safely and helps take pictures from the best angles. That matters because once you’re in the moment, you’re not trying to wrestle a device while timing your swim.

What to consider before you commit

This is the part you should respect: the swim can be strenuous, especially if the water is choppy. One review specifically pointed out that rough swells make the tunnel crossing harder for some people. If you’re not a confident open-water swimmer, consider whether “moderate physical fitness” matches you.

Also, jellyfish can be a problem during certain months. There’s a clear heads-up from reviews that the jellyfish season can start around May (even mid to late April), and that it can make getting into the water miserable or even impossible. That doesn’t mean the tour is unsafe, but it does mean you should be realistic about how much time you’ll actually spend snorkeling.

Practical safety notes that help

• No shoes are allowed when going down to the activities.
• Don’t bring bags or backpacks down to the beaches. You’ll be managing gear with what’s allowed.
• If you get motion sick, you should take it seriously. Reviews mention strong waves and recommend planning ahead if you’re sensitive.

One more sunscreen note that came up in reviews: some operators caution that you can’t apply sunscreen during the trip to protect coral. The practical move is simple—wear reef-safe sunscreen before you board or use a rash guard, so you’re protected without fiddling underwater.

Hidden Beach time, then snorkeling: what the water part feels like

After Hidden Beach, the tour shifts into water exploration mode with snorkeling using the included equipment. This is where you’ll expect to see marine life up close—fish, coral structures, and whatever the day gives you.

Snorkeling time is not described as a long, exact schedule in the tour notes, but it’s positioned right after Hidden Beach. That ordering is helpful. You’re already in a swim mindset, and you’re less likely to rush into gear.

The day can change based on conditions

Here’s the honest part: the ocean decides the itinerary details sometimes. Reviews describe days where snorkeling didn’t happen because conditions weren’t comfortable, and the crew adjusted by focusing on wildlife opportunities instead. So if the sea is rough or the water visibility isn’t great, you’re not necessarily losing the whole day—you’re usually getting a different angle on the islands.

Then comes Playa Nopalera

Next, you visit Playa Nopalera. This is described as a place for swimming, walking, and exploring natural caves. That’s a nice contrast to Hidden Beach. Hidden Beach is all about the tunnel swim and the photo-worthy surprise. Playa Nopalera is more about moving around, stretching your legs, and seeing the coastline in a more open setting.

If you like snorkeling, you’ll probably enjoy the mix. If snorkeling isn’t your thing, the cave-walk element can still make the stop worthwhile—assuming conditions allow you to get in and move safely.

Wildlife chances on the way: dolphins and whales can show up

Even though the main draw is Hidden Beach, you should treat the boat ride as a wildlife window. Reviews mention surprise encounters like dolphins (including spinner dolphins) and whales.

A few helpful patterns from the reports:

• You may see whales on the way out or back.
• Small boats can get closer and often feel more “in the moment” when wildlife appears.
• When whales are spotted, the crew may reduce speed and position the boat for viewing, even if they can’t stop completely.

So if you’re the type who keeps scanning the horizon, this trip rewards that habit. And if Hidden Beach photos are your goal, wildlife adds a second memory you didn’t plan for.

Value check: is $173.25 for 3 hours a fair deal?

At $173.25 per person, this isn’t a cheap impulse buy. But it stacks up well when you look at what’s included for a short time.

You’re not paying for just transportation. The ticket covers:

• Hidden Beach admission
• Guided swim access with certified guidance
• Snorkeling equipment
• Lifejacket
• Non-alcoholic beverages
• Covered boat
• Waterproof solution for your phone/camera

Also, the group limit matters. Tours that run with dozens of people often lose time (waiting, crowding, slower guidance). Here, the small group structure makes the experience feel smoother and less hectic.

One review even called out that this felt more comfortable than big catamaran-style trips with 40+ people. I’d echo the logic: if your goal is a focused experience where you’re not jostling for space, paying for the smaller format can make the difference between chaotic and calm.

If you’re comparing options, this is the key math:

• You’re paying for access to a specific, higher-effort location (Hidden Beach).
• You’re paying for the “how” (guided tunnel swim + phone handling + equipment).
• You’re paying for the time efficiency (about 3 hours total).

Meeting points in Punta Mita: how to avoid a stressful start

You start at GRIMAR ADVENTURES Excursions Islas Marietas Islands – Ballenas – Whales Watching, Av. Las Pangas 18, 63734 Corral del Risco, Nay., Mexico. The tour ends back at Punta de Mita pier, with the end address listed as Av. El Anclote 200a, Nuevo, 63734 Corral del Risco, Nay., Mexico.

There’s one logistics lesson worth taking seriously: follow the exact address on your maps app and show up a little early. One review noted it was easy because the Google Maps pin matched the correct spot. That’s the idea. Put the pin in your phone before you leave, and don’t trust memory.

Also, the tour is a mobile-ticket setup, and it’s marked as near public transportation. That helps, but it doesn’t replace basic timing. Be there on time so you don’t end up negotiating between multiple agencies in the same area.

What to pack (and what not to): the rules keep you moving

This is an “organize your day like a diver, not like a beach lounger” kind of tour. The rules are there for safety and to protect the beaches.

Bring

• Swimsuit
• Towel
• Sunscreen
• Camera or cell phone (the guide-supported waterproof container is meant for this)
• Drinks in thermoses or reusable bottles (practical for the ride)

Do not bring

• Shoes down to the activities
• Bags, backpacks, suitcases
• Food and/or drinks to the beaches
• Drones (not allowed under CONANP regulations)

That “no food/drinks to the beaches” rule is important. The tour includes beverages, but it doesn’t include food. Plan to eat before you go or after you’re back. Since your time at Playa Escondida is short, having an empty-stomach stress moment will do nothing for your enjoyment.

Motion sickness tip

If you tend to get carsick on winding roads, you should be extra cautious on a boat. Reviews specifically mention strong waves and suggest taking motion sickness pills beforehand if needed.

Who this Punta Mita swim tour fits best (and who should skip it)

This tour sets a minimum age of 10 and a maximum age of 64. It also says moderate physical fitness is needed, which is consistent with the swim requirement.

You’ll likely love it if:

• you’re a strong swimmer or at least comfortable in open water
• you want the thrill of the tunnel swim instead of just sitting on a beach chair
• you like a small group and hands-on guidance
• you care about photos and want the guide to handle the phone safely

You might want to skip or ask questions first if:

• you’re easily overwhelmed by water currents or rough seas
• you’re planning for May (or late April) and snorkeling is a big deal for you, since jellyfish can affect water access
• you don’t want your day shaped by ocean conditions

And one more thought: it’s not a slow sightseeing crawl. It’s a compact, active tour. If you like lounging, you might feel “busy but satisfied.” If you like adventure, you’ll feel “that was the point.”

Weather reality: when the sea changes everything

This is a weather-dependent trip. If it gets canceled due to poor weather, you’ll be offered another date or a full refund.

That matters because the core activity depends on water conditions. Rough seas make the tunnel swim harder, and jellyfish season can change how comfortable snorkeling is.

Still, the good news is the crew adjusts. Reviews mention that on less-than-ideal days, the team may shift the focus—like prioritizing wildlife sightings such as whales—so the tour isn’t automatically a bust.

If you’re deciding between travel dates, pick a window where you can be flexible. And if snorkeling is your top priority, understand you can’t control sea life.

Final call: should you book Guaranteed Hidden Beach with Grimar Adventures?

I’d book it if your dream list includes Playa Escondida access, guided tunnel swimming, and a short, tightly run boat day with snorkeling and a second beach stop at Playa Nopalera. The small group size is a real advantage, and the included admission plus gear makes it feel like solid value for what you’re doing.

I’d think twice if you know you struggle in open water, or if your timing lines up with jellyfish season and you’re counting on lots of time floating in the snorkel zone. In that case, you may still enjoy the boat ride and island viewing, but set expectations.

If you want a practical checklist: be a confident swimmer, bring the right swim gear, and plan for the ocean to influence the exact feel of the day. Do that, and this becomes one of those Punta Mita experiences you’ll remember for the swim-through-a-secret-place factor.

FAQ

How long is the tour?

It’s about 3 hours total.

What is the price per person?

The price is $173.25 per person.

How many people are on the tour?

The tour has a maximum of 8 travelers.

Where does the tour start and end?

Start: GRIMAR ADVENTURES Excursions Islas Marietas Islands – Ballenas – Whales Watching, Av. Las Pangas 18, 63734 Corral del Risco, Nay., Mexico.

End: back at Punta de Mita pier (the end address is Av. El Anclote 200a, Nuevo, 63734 Corral del Risco, Nay., Mexico).

Is admission to Hidden Beach included?

Yes. Entrance to the Hidden Beach (beach of love) is included.

How do you access Hidden Beach?

You access it by swimming 80 to 100 meters through a natural tunnel, always accompanied by a certified guide.

Is snorkeling included?

Yes. Snorkeling equipment is included, and snorkeling is part of the itinerary after Hidden Beach.

What should I bring for the day?

Bring a swimsuit, towel, sunscreen, and your camera or cell phone. You can also bring drinks in thermoses or reusable bottles.

What items are not allowed?

You can’t go down to the activities with shoes, and you can’t bring bags/backpacks/suitcases or food and/or drinks to the beaches. Drones are not allowed as well.

What if the weather is bad or I need to cancel?

You can cancel for a full refund up to 24 hours before the experience start time. If the tour is canceled due to poor weather, you’ll be offered a different date or a full refund.