Review · COZUMEL SCUBA DIVING
Cozumel Shore Excursion: Mini-SUB Diving Adventure
The unusual part of this Cozumel shore excursion is that you explore underwater from a small, self-propelled mini-SUB, breathing normally without a mask or snorkel tube. You follow a guide through the water, so it offers a way to get close to marine life without needing to swim or learn scuba skills.
I like two things in particular: the one-to-one guidance helps newcomers feel more at ease, and the short format fits neatly into a cruise day. One caution: the full outing lasts about an hour, but time underwater is closer to 30 minutes, and getting into the helmet and equalizing your ears can feel uncomfortable for some people.
At a glance
- The mini-SUB does the work: You steer an underwater scooter while a guide leads the group.
- No swimming skill is required: Non-swimmers have taken part, though you still need to feel comfortable entering the water and using the equipment.
- Marine life is a bonus, not a guarantee: You may see parrotfish, rays, garden eels, corals, and other sea creatures. Sightings change with conditions.
- Small groups mean close support: The stated limit is five people, with a maximum of five per submersion.
- Allow for more than the water time: The one-hour estimate includes check-in, instructions, and getting ready.
- Budget for extras: Transport, lunch, towels, lockers, and optional photos or video are not included.
What the Mini-SUB ride is really like

Think of this as a guided underwater scooter ride, not a conventional submarine trip with windows and a cabin. You sit or position yourself at the mini-SUB’s viewing and breathing apparatus, then use its controls to move along a route with a guide nearby. The device lets you breathe underwater without a snorkel tube or standard mask.
That difference matters if snorkeling makes you anxious or you cannot swim well. Several people who could not swim have completed the activity with staff assistance. Still, you are entering the sea and using an enclosed helmet or bubble-like apparatus, so this is not a good fit if you are claustrophobic or uneasy about having your head enclosed.
The guides give instructions before you enter the water. You learn how to operate the unit, use hand signals, and ask for help. On the underwater route, staff stay close and check that you are comfortable. Some participants have described being tethered to a line or helped along when currents made the scooter harder to steer.
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From Hotel Cozumel to the water

The meeting point is Hotel Cozumel & Resort on the island’s southern coastal road, not the cruise port. You need to arrange your own transport. A taxi is a practical choice, and one person who walked from the port reported a walk of about 40 minutes, so do not assume this is a quick stroll from the ship.
When you arrive, check in at the hotel and meet the activity staff. The hotel facilities included with the tour are restrooms, changing rooms, and a beach area. The exact arrangements may vary, but you can expect a short wait before your turn, so bring only what you need and plan where to keep the rest.
The stated tour duration is about one hour. That covers the briefing and preparation as well as the time on the water. In one detailed account, the underwater portion lasted around 35 minutes; other accounts describe it as roughly 30 minutes. Treat that as a useful guide, not a guaranteed clock time.
The briefing, gear, and first moments underwater
Before you set off, your bilingual guide explains how the mini-SUB works and what to do if you need assistance. Clear instructions are especially valuable here. The machine is novel, and the first moments can feel odd if you have never used an underwater helmet. Some people settle in quickly; others need reassurance and a little time to relax.
Guides Joaquin and Jesús have been singled out for patient, encouraging support, and other staff members have been praised for explaining the controls and safety signals carefully. You cannot count on a particular guide being assigned, but close supervision is a central part of the format.
There are two practical points to think through before booking. First, you may feel pressure in your ears as you go down. One person found that the pressure eased after their ears popped, while another participant became dizzy and stopped early after having trouble equalizing. Second, the enclosed equipment may bother anyone prone to claustrophobia. Staff can explain how to exit, but no guide can make the sensation comfortable for everyone.
Following the guide through Cozumel’s water

Once you are comfortable, you steer the mini-SUB along a guided route and watch the water around you. The operator describes possible sightings including parrotfish, manta rays, garden eels, and colorful corals. You may also see smaller tropical fish close by. Marine life is wild, so the guide can point out what is present, but cannot promise a particular species or a spectacular showing.
This activity can take you below the surface in a way that swimming or snorkeling does not. That is its main appeal: you can focus on the view rather than keeping your face above water or managing a snorkel. A number of participants have described feeding fish or seeing and holding sea creatures such as a starfish, sea cucumber, puffer fish, or conch. Treat those moments as possible extras, not as a guaranteed part of every outing.
Set your expectations sensibly. This is not a long expedition across a coral reef, and one person specifically noted that the route was not over a reef. Currents can affect how quickly the scooters move; guides may help keep the group on course. If your main goal is an expansive reef landscape or a long swim, a dedicated snorkeling or scuba trip may suit you better.
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Returning to the beach and using the hotel

After the underwater portion, you return to shore and can relax in the beach area. Restrooms and changing rooms are included, which makes the stop more convenient than a bare-bones activity beside the road. You may also find time to sit by the water before heading back to the ship.
Do not assume that hotel pool access is part of the price. The included facilities specify the beach area, restrooms, and changing rooms, while a participant reported that pool use required an extra $25 per person. Rules can change, so ask the operator or hotel before you count on swimming in the pool.
Food and drinks are also separate. The tour description mentions a nearby restaurant where you can buy juice or a cocktail after the activity, but lunch and alcoholic beverages are not included. If you are on a cruise schedule, leave enough time for your meal and the return trip to port.
What the $89.99 price includes, and what it does not

At $89.99 per person, the package includes use of the mini-SUB, a bilingual guide, the shore-excursion return guarantee, and access to the stated hotel facilities. For a short activity, it is not a bargain-bin price. The value comes from trying an unusual way to explore underwater, plus close instruction and a manageable time commitment.
The add-ons can change the final cost. Towels and lockers are listed at $10 each, but locker details have not been consistent: some people have paid $5 for a locker and a refundable $30 key deposit. Confirm the current fee at check-in and bring cash in case the process requires it.
Underwater photos and video are optional, not included. One participant reported a $70 charge for the group’s images and video, payable in cash. Ask the staff about the current price and payment method before you enter the water. If you think you might want pictures, decide early. Some people changed their minds after the activity, but the images were no longer available to purchase afterward.
Who can take part, and who should think twice

The minimum age is 12, the minimum height is 4 feet (1.2 meters), the maximum weight is 300 pounds (136 kilograms), and the maximum age is 75. The activity is limited to five people per submersion. The stated maximum group size is also five; if a larger party is accommodated, it may be divided into separate runs.
The operator excludes people who are pregnant; have heart or lung conditions, asthma, insulin dependence, epilepsy, or back or neck problems; or have had surgery in the past six months. Read these restrictions carefully and contact the operator if you are unsure whether a medical condition applies. This is a safety matter, not a minor formality.
You do not need to be a swimmer, but you do need to be willing to enter the water and use the equipment. If you have claustrophobia, trouble equalizing your ears, or a strong fear of enclosed headgear, think carefully before booking. If you decide to stop early, staff can explain how to exit, but you may not receive the full underwater time.
Is this Cozumel shore excursion worth booking?

I would choose the Mini-SUB if you want a short, unusual marine-life encounter and snorkeling or scuba feels like too much. The personal guidance, access to hotel facilities, and manageable one-hour format make it a practical cruise-day option. The strongest part is the chance to look around underwater without needing to swim.
I would skip it if you expect a long reef visit, need a fixed list of animal sightings, or dislike enclosed equipment. Before you book, check the meeting time against your ship’s schedule, arrange transport to Hotel Cozumel & Resort, and ask about current locker, pool, and photo charges. If those details work for you, this is a distinctive way to spend part of a day in Cozumel.
FAQ

How long does the Mini-SUB activity take?
The full activity is about one hour. The time underwater is usually around 30 minutes, though the exact duration can vary.
Where do I meet the guide?
Meet at Hotel Cozumel & Resort, at Carretera Costera Sur Lote Kilometro 1-7, Colonos Cuzamil, Cozumel. The activity ends back at the meeting point.
Is transport from the cruise port included?
No. Cruise port and hotel pickup and drop-off are not included, so you need to arrange your own transport.
Can I take part if I cannot swim?
Non-swimmers have taken part, and the guide explains how to use the equipment and signals. You still need to feel comfortable entering the water and wearing the mini-SUB equipment.
What are the age and size limits?
Participants must be at least 12 years old and 4 feet (1.2 meters) tall. The maximum weight is 300 pounds (136 kilograms), and the maximum age is 75.
What happens if bad weather cancels the activity?
If poor weather causes the activity to be canceled, you will be offered another date or a full refund. You can also cancel at least 24 hours before the start time for a full refund. Cancellations made less than 24 hours before the start time are not refundable.
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