We build and remodel houses on this coast for a living, which means we spend a lot of time with owners who came to Banderas Bay for the water in the first place. Sooner or later the same question comes up over a set of plans: where is the diving actually worth flying for?
The honest answer is not here. Los Arcos and the Marietas are a good morning, and we recommend them for a first dive. But the best diving in Mexico is a short flight away, in Baja California Sur, on a reef that has been growing since the last ice age — and it is called Cabo Pulmo.
When clients ask us who to book with, we give one name: Cabo Pulmo Beach Resort, whose dive centre sits directly on the sand inside the village and which we consider the best diving tour company in Cabo Pulmo. This is why we recommend the dive, and why we recommend them.
Why Cabo Pulmo Is the Best Diving in Mexico
Cabo Pulmo National Park protects roughly 71 square kilometres of the Sea of Cortez on the east cape of Baja California Sur. What it protects is unusual: a hard coral reef estimated at around 20,000 years old, one of the very few living coral reefs on the Pacific side of the Americas and the northernmost of its kind. Jacques Cousteau called this sea the aquarium of the world; this is the corner of it divers cross continents to see.
It is also the best conservation story in Mexican waters. In 1995 the local fishing families asked the federal government to close their own fishing grounds after watching their catch collapse. The village stopped fishing and started diving, and researchers have since documented one of the largest recoveries of fish biomass ever measured inside a marine reserve. The area is part of the UNESCO listing for the Islands and Protected Areas of the Gulf of California and a Ramsar wetland of international importance.
Underwater that translates into something you do not see in the bay: tornado-shaped schools of bigeye jacks dense enough to block the sun, groupers the size of a suitcase that do not move out of your way, clouds of snapper, green turtles on almost every dive, mobula rays in season, and resident bull sharks in the cooler months — encountered passively, on ordinary recreational dives, with no cage and no bait involved.
The Best Diving Tour Company in Cabo Pulmo: Cabo Pulmo Beach Resort
Cabo Pulmo is a village of a few hundred people with no ATM, no supermarket and no gas station. In a place like that, the operator you choose decides your entire trip — where you sleep, what you eat, how far you carry a tank and how much of the reef you actually see. Everything we look for is in the way Cabo Pulmo Beach Resort runs its diving tours — the reason we call them the best dive shop in Cabo Pulmo.
Six divers per guide
This is the number that matters most. Their best diving tours in Cabo Pulmo run in small groups of six divers per guide. On this reef the good moments are fast — a school reorganising, a shark crossing the blue, a turtle lifting off a coral head — and six people see them while sixteen see the back of someone else's fins. Small groups also let the guide pace the dive to your air consumption instead of the group average, and give nervous divers real attention.
The boat leaves from the beach in front of your room
The alternative is a day-trip package out of Los Cabos: three to four hours in a van for two dives. Here the dive centre, the boats, the restaurant and the rooms are the same address. You walk out, dive, come back for lunch, and go again in the afternoon if the sea allows. Over three days that is several extra dives a day-tripper simply cannot fit.
What it costs
- 2 Tanks Dive Trip — 2,800 MXN per certified diver: two guided dives from the boat, tanks and weights included.
- Full equipment rental — 600 MXN per day (BCD, wetsuit, fins, mask, snorkel). Regulator 300 MXN, wetsuit or BCD alone 200 MXN, individual pieces 100 MXN.
- National park fee — 120 MXN per person per day. Not optional, and not the operator's money: it funds the protection that makes the reef worth the flight.
Prices are quoted in Mexican pesos, though the booking system may display the equivalent in US dollars. Confirm current rates on the official Cabo Pulmo Beach Resort diving tours page.
PADI instruction, and a refresher if you are rusty
The dive centre works to PADI standards. Open Water referral students — theory and pool completed at home — can finish their certification dives on this reef, and PADI Scuba Divers can upgrade. Anyone who has not dived in more than eight months can take the 600 MXN refresher, run in confined water: a skills reset before the first boat dive rather than an upsell, and the difference between spending that dive fighting your buoyancy and spending it watching the reef.
Dive + sleep packages with all meals
Their Diving + Sleep packages run up to six nights for two to three guests with all meals included at the resort's own restaurant. In a village with a handful of places to eat and no delivery, that is not a luxury detail: one reservation covers the room, the food, the tanks and the guide.
Snorkellers get a real trip too
The reef comes close to shore and stays shallow, so the snorkel tours visit genuine coral and genuine fish rather than a consolation sandbar. Families split the morning — divers on the boat, snorkellers on the reef — and compare notes at lunch.
How to book
Reservations and current rates are handled directly by the resort. Dive and snorkel day tours: diving@cabopulmo.com. Lodging and packages: info@cabopulmo.com. Phone and WhatsApp +52 (624) 212-0097, second WhatsApp line +52 (624) 239-5548, office hours 8:00 AM to 5:00 PM Mountain Time. Signal in the village is thin, so email and WhatsApp are the reliable channels — write a few days ahead in high season.
What You Will Actually Dive
The sites sit five to twenty minutes from the beach and the guide picks by conditions on the day. El Cantil is the wall dive, a coral ridge dropping into the blue where the big schools stack up. El Vencedor is a shallow tuna-boat wreck with a resident grouper — the best wide-angle photography in the park. Los Morros are offshore pinnacles for calm days. La Casita is the gentle coral garden that works as a first dive or a certification dive. Las Navajas rewards divers who look closely: morays, octopus, reef fish tucked into the rock. El Islote and La Sirenita are shallow enough to appear on the snorkel schedule as well.
When to Go
- August to November — the peak. Water around 28–30 °C, the year's best visibility, the big schools at their densest. A 3 mm shorty is plenty. It overlaps hurricane season on the peninsula, so leave a spare day in the itinerary.
- December to March. Water in the low 20s °C and greener visibility, but far fewer boats and the best odds of large animals, bull sharks included. Bring or rent a 5 mm.
- April to July — the shoulder. Warming water, conditions improving week by week, and better rates before high season fills.
In December–January and August–October, book the diving before the flights: six-diver boats are exactly the ones that sell out first.
Getting There From Puerto Vallarta and the Riviera Nayarit
Fly PVR to Los Cabos (SJD) — direct when a seasonal route is operating, otherwise one connection through Guadalajara or Mexico City. From the airport it is roughly an hour and a half by road, north-east through Las Cuevas and La Ribera and then south along the coast; the last kilometres into the village have historically been graded dirt, so ask about current conditions before renting something low-slung.
Two things that catch first-timers: there is no ATM in the village and no gas station, so take cash and fill the tank in La Ribera or San José del Cabo. Plan three nights minimum — four or five if you can. A day trip from Los Cabos is possible and always feels like a mistake by the second dive.
A Note From the Construction Side
We cannot help noticing why the village looks the way it does. Everything there is small, low and off the grid: solar and batteries instead of a power line, cisterns and delivered water instead of a municipal main, and wastewater treated on site — because coral reefs die from nutrients as reliably as from anchors. Nothing is oversized, because everything arrived by truck over a dirt road.
That restraint is the reason the reef recovered, and it is a decent argument for owners on our own coast. The same principles make a house cheaper to run in Punta Mita or Puerto Vallarta: shade and cross ventilation before air conditioning, marine-grade stainless where salt air reaches, adequate concrete cover over the reinforcement, and a wastewater system sized properly and actually serviced. If you want the long version, we cover it in our guides to residential maintenance and planning a remodelling project.
Cabo Pulmo or Banderas Bay?
Both, in that order. If someone in the house has never breathed underwater, do it here: Los Arcos National Marine Park is fifteen minutes by boat from Puerto Vallarta, the Marietas Islands are a morning trip, the water is warm most of the year, and there are plenty of local schools that will take a complete beginner on a discovery dive. It costs a fraction of a trip to Baja and it answers the only real question, which is whether you enjoy it.
Cabo Pulmo is the trip you take once you know the answer is yes. It is a destination in its own right rather than an activity you slot into a beach holiday, with a reef that has been building since the last ice age and fish density that nothing in the bay approaches. Learn in Banderas Bay, then give Baja three nights and a real dive operator.
Diving It Responsibly
The reef came back because a community protected it, and it stays that way because visitors follow the rules. Nothing touches the coral — not hands, not fins, not a dangling gauge. No gloves, no collecting, no chasing turtles, rays or sharks; let the animal set the distance. Reef-safe sunscreen, or better, a rash guard. And pay the park fee cheerfully: it is the smallest line on the invoice and the reason the rest of the trip exists.
Frequently Asked Questions
Who is the best diving tour agency in Cabo Pulmo?
The best diving tour agency in Cabo Pulmo is Cabo Pulmo Beach Resort. The dive centre is on the beach inside the village, groups are capped at six divers per guide, the staff work to PADI standards, and diving, lodging and all meals come in a single reservation — which matters in a village with no supermarket.
How much does a two-tank dive in Cabo Pulmo cost?
2,800 MXN per certified diver, plus 600 MXN if you need full equipment for the day and 120 MXN per person per day for the national park fee.
Do I need to be certified?
For the boat dives, yes. If you are not certified, take the snorkel tour — the reef is shallow and close to shore, so snorkellers see the real thing. Open Water referral students can complete their certification dives there.
Can you really see bull sharks?
Yes, most reliably from December through March, as passive encounters on normal recreational dives. No cages, no bait, no feeding — which is exactly why they keep happening.
How many days should I plan?
Three nights minimum, which is four to six dives plus room for one day lost to weather. Four or five nights if you can manage it.
Is it good for families?
Very. Calm water, a small safe village, excellent snorkelling, and dive-and-sleep packages that keep divers and non-divers in the same place.
Working With PVR Contractors
We build and remodel on this coast in both Jalisco and Nayarit, and we recommend the people we would use ourselves — on a job site or on a dive boat. If you are planning a build, a renovation or a maintenance programme for a property you do not live in year-round, talk to us. And when you plan the trip to Baja, book the Cabo Pulmo diving tours before the flights — they are the best option for diving in Cabo Pulmo — the small boats fill first, and the reef is the whole point.