Diving in Sea of Cortez - Bluewater Dive Travel

Sea of Cortez

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Scuba Diving in the Sea of Cortez, Mexico

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Sea of Cortez Diving Highlights

The scuba diving in the Sea of Cortez is all about sea lions, whale sharks, manta and mobula rays, dolphins, huge schools of fish, and fascinating underwater macro life. It is one of the easiest "big animal" destinations to reach and enjoy from the United States.

La Paz, Cabo Pulmo, Loreto, and the northern Sea of Cortez all have excellent diving. You can dive the Sea of Cortez via liveaboard or a dive resort.

Read more about Mexico's best dive destinations.

View the Sea of Cortez's Location on Google Map

 

Intro to  DIVING Sea of Cortez

The Sea of Cortez is a special place situated between Baja, Mexico, and the mainland. Water of all shades of blue sits against an arid desert backdrop and an assortment of islands. The Baja peninsula is home to unique flora and fauna that have evolved in near isolation, so it's no surprise that the Sea of Cortez diving features magnificent marine life. Cabo San Lucas is home to Land's End, a narrow strip of land where the Pacific Ocean meets the Sea of Cortez. There is a famous arch, several unique dive sites, and accommodations for all sides of the nightlife spectrum.

For divers, La Paz is the most popular destination. It is the capital city of Baja California Sur, Mexico, and is situated on the coast about 2 hours north of Cabo San Lucas, on the Sea of Cortez side of the peninsula. Cabo Pulmo is a very small town located between Cabo and La Paz, offering fascinating diving within a protected marine park.

Moving North into the Sea of Cortez we find Loreto, a much smaller destination than La Paz, but also with excellent diving. North of Loreto is very remote and the dive sites are best reached by liveaboard with easy access from Puerto Pensaco, a short drive from Phoenix, Arizona. The cost of diving on the Sea of Cortez is much more affordable than many other destinations where divers look for the same large marine life, and short flights from the southwestern United States make travel easy.

sea of cortez blenny  sea of cortez jawfish

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Diving Information 

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Sea of Cortez Marine Life & Photography Subjects

The Sea of Cortez has a reputation for whale sharks. During the summer and fall, divers flock to the Sea of Cortez for a chance to swim with whale sharks. These gentle giants generally move south as the season gets later.

Shark lovers should look for bull sharks in Cabo Pulmo, and can see blues, makos, and silkies on a Cabo marine life safari. Hammerhead sharks can be spotted by lucky diver at El Bajo, Las Animas, and Gordo Banks. 

During the winter months, mobula rays are quite commonly seen in the Sea of Cortez, especially on night dives.

sea of cortez whale shark

Van Gogh patterns on a whale shark on the hunt for krill in Bahia de los Angeles

 

Another main attraction for diving La Paz are the sea lions, which frolic and play with divers, presenting amazing photo opportunities. Sea Lions are found in a number of places in the Sea of Cortez, but none beat the sea lion colony of Los Islotes.

Sealions Sea of Cortez Sealions Sea of Cortez  

(Left) Jazz hands! (Right) Sealions by Max Weinmann

 

Other Sea of Cortez marine life includes huge schools of jacks and baitballs, as well as tuna, wahoo and lots of other fish, dolphins, eels, jawfish, rays.

The Sea of Cortez also offers great macro photography opportunities with critters like nudibranchs, snails, jawfish, pikeblennies, signal blennies; and various crabs and shrimps to photograph.

Read about our 2022 Sea of Cortez trip!

Love the diversity of the Sea of Cortez but fancy a change? Have a look at Raja Ampat dive trips.


Diving Conditions

  • Water Temperatures: 68 - 84°F (20 - 29°C)
  • Visibility: 50 - 115 feet (15 - 35m)
  • Depth Range: 16 - 130 feet (5 - 40m)

 

Typical Sea of Cortez Dive

Pangas (classic Mexican wood and fiberglass boats) are the norm for resort diving. Several operators have larger, more "traditional" dive boats. Resprt-based diving can often involve long boat rides to dive sites - sometimes exceeding two hours each way.

Liveaboards will dive from their tender boats. Dives in the Sea of Cortez can be a shallow "fishbowls" with fantastic vis or deep dives in stiff current looking for hammerhead sharks, so there are options for everyone.

Learn about Bluewater's Cabo Marine Life Safaris in Cabo and the Sea of Cortez. 

Explore Baja Trip Report 2021 Explore Baja Trip Report 2021

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Travel Information 

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How to Get There

La Paz is serviced by Manuel Márquez de León Airport (LAP), with most flights arriving from Mexico City or Guadalajara. Once on the ground, it's a quick shuttle ride to the dive resorts. Divers visiting Cabo Pulmo can fly into Los Cabos International Airport (SJD), which is about an hour away. This is also the airport for Cabo San Lucas.

Loreto has an international airport, however, flights are more limited than in the larger cities. Renting a car is easy, but be aware that insurance requirements in Mexico differ greatly from US requirements an adds a significant increase to the overall rental cost.

Sea of Cortez liveaboards depart from Cabo for southern Sea of Cortez itineraries. For northern and central routes, liveaboards depart from Puerto Penasco, which is an easy shuttle ride from Phoenix, Arizona.

 

How to Dive the Sea of Cortez

There are several dive resorts in the Sea of Cortez along with a few liveaboard options. Divers will find most of the dive resorts in La Paz, which is easy to reach. Cabo Pulmo offers limited options and is also easily reached. Beyond that, divers can explore options at Loreto.

Liveaboards like the Rocio del Mar, the Quino el Guardian, and the Nautilus Gallant Lady provide extended range and offer different itineraries depending on the time of year and marine life seasons - a great way to experience the Sea of Cortez.  

 

Nudibranch & Fish Sea of Cortez Cowrie Sea of Cortez  

(Left) A nudibranch and fish on a heart urchin by Brandee McDonald. (Right) A crazie looking cowrie by Lance Fesler

 

Best Time to Dive Sea of Cortez

July to December has the best visibility, often approaching 80 feet (25 meters). We're fans of visiting the La Paz area between October and November, which is prime season for whale sharks and offers warmer waters. The whale sharks are generally found in the bay feeding on plankton, so visibility will be significantly less during these snorkeling sessions. The local authorities allow shorkeling in the Bay of La Paz once a minimum number of whale sharks have arrived, usually betweeen October and April. The whale sharks are also near Bahia de Los Angeles during July-August, and you may be able to snorkel with them during a liveaboard trip.

December to March brings sightings of humpback whales (though you are not allowed to enter the water with them) as well as mobula rays, however, the water is colder with poorer visibility than the summer and fall. Temperatures range from 65F in the winter to 86F in late summer. It can also be windy during the winter months. The Sea of Cortez and Baja Peninsula get hot topside during the summer, but it's a dry heat and the refreshing Sea of Cortez is never more than a few steps away.

As an additional note, if you're visiting La Paz to dive with the sea lions on Los Islotes, please be informed that the colony is closed for mating season each year from June 1-August 31. 

Sea of Cortez Trip Report 2021 Explore Baja Trip Report 2021 


Topside & Non-Diving Activities

Sea of Cortez dive resorts offer activities like fishing, kayaking, snorkeling, sandy beaches, dining and lounging by the pool. Keep in mind that swimming with whale sharks is limited to snorkels and no tanks, so it's a great opportunity to bring non-divers on an ocean adventure.

Non-diving activities on liveaboards are limited to snorkeling and enjoying the sun decks, plus whale watching!

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SEA of Cortez Liveaboards

Find a liveaboard in the Sea of Cortez and book online with the help of our travel experts. Live chat support available. Best price guaranteed!

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Please contact us for the latest availability of  MV Valentina.

 

New to liveaboards? Let's help you get started with our Guide to Liveaboard Diving.

 

Other Useful Information 

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Practical Information

  • Currency: Mexican Peso (MXN)
  • Language: Spanish is the official language in Mexico but most people today learn English as a second language
  • Time Zone: UTC-7
  • Electricity: 127 V 60 Hz

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Reviews (15)

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REVIEW OF DIVING LA PAZ, BAJA

The Sea of Cortez is one of my favorite dive destinations to date.

The whale shark snorkeling was phenomenal. Whale shark season I've been told is fall to winter. Both of my days snorkeling with them did not disappoint. Everyone is on the lookout on the boat for the whale sharks and when one is spotted, small groups get into the water one at a time to go swim with them. Encounters can be variable. Sometimes the whale shark will be just cruising and can be surprisingly hard to keep up with - being a fast swimmer will certainly behoove you in such cases. However, sometimes you will get lucky and the whale shark will stop to feed, assume a vertical position and suck water like a giant vacuum cleaner. If that happens, be prepared for the most amazing experience ever. We swam with little baby whale sharks only 8 - 10 years old and massive ones (the bigger ones are easier to keep up with!). At one point, I counted at least 5 whale sharks feeding in an area at once. Most encounters are less than 10 min at the time, but at the end with 5 in the water feeding, everyone spent at least 1 hour in the water with them. As if whale sharks aren't exciting enough, there is a high chance you will run into some Bottlenose dolphins and if they are curious, you can get to swim with them as well. The water temperature was ~ 87 degrees F and calm in late September, visibility was ~ 60 feet.

Los Islotes, the Sea Lion colony was equally as amazing. This was a 1.5 hr boat ride out, it is a rock outcropping with a huge colony. The topography above water is amazing and there is a famous arch which makes for really nice wide angle photos underwater. The sea lions were so friendly! Maybe a little too friendly!! They love to bite fins and the Styrofoam floats on strobes and maybe even a butt or two! (But they are playful nibbles). We saw tons of pups in late Sept. They are so cute. Aside from sea lions, tons of bait fish underwater, amazing viz, and beautiful sea fans make for wide angle photos that are absolutely stunning. There can be quite a bit of current in the morning, I recommend listening carefully to instructions during the dive briefing. Once you get over to the little cove, current is minimal, it is just getting over there that can require quite a bit of swimming. Surf can also be up sometimes. In the afternoon, conditions tended to calm down. If conditions are good, I highly recommend taking the route around the point as that was probably my most favorite dive of the trip.

The reef diving was also very nice, though the viz at times was not the best and there can be some current at many spots. We also did a wreck dive - Fang Ming which was a nice easy wreck dive.

This trip was definitely heavy on the wide angle but there is plenty of macro opportunities as well. Lots of little blennies everywhere.

I didn't spend too much time in town but La Paz is a very nice city with many nice restaurants. I had a fantastic meal at the Costa Baja resort.

I booked this trip rather last minute and I am 100% glad I did.

Visited on 09/2015 - Submitted on 10/06/2015
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Probably one of my top dive trips. I dove with dolphins and their babies, schools of mobula's , crazy big whale sharks. massive schooling fish, and the most inquisitive sea lions I've ever met. It was none stop diving and every dive was exciting. I'd love to go again. As a side note I got some great photo advice.

Visited on 05/2016 - Submitted on 05/01/2020
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5

Cabo itself is a great place to visit. We went over Spring Break, so there was plenty of night life. Had fun and good food at Cabo Wabo. Enjoyed the Giggling Marlin and El Squid Roe for a little night life. Had a great diner at La Central Los Cabos and watched all the boats coming in to dock.

We only had time for one day of scuba diving. We went around 7-8 meters for the most of the 3 dives. We aren't used to the cold water diving even in the 7mm suit. The dive was still fun and worth it!

Pelican Rock:

Interesting rocky, underwater mountain dive site. Good visibility - 15 meters, water temp was cold - 22 degrees celcius. Saw lots of fan corals, star fish, lobster, puffer fish, stone fish, nurse shark, spotted sea snake, eels, and lots of school fish.

Land's End:

Started off with a sea lion, sandy bottom dive with lots of rays. Also went by an old sunk boat, but the visibility wasn't as good there. Saw flounder and a few nudi branch as we came up a rocky wall. Lots of eels. Small cave at the end.

Neptune's Finger:

Sandy bottom start with rocky wall at the end. Saw large schools of fish, but visibility wasn't great. Saw lots of rays and eels. Pretty fan corals with lots of color. Nice butterfly ray, electric rays, and guitar rays. Puffer fish and nudi branch on wall.

Visited on 03/2020 - Submitted on 05/29/2020
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After hearing so many wonderful things about the Sea of Cortez, I booked a trip there in August of 2019 with Bluewater Travel. The beauty of this area can't be described, it needs to be seen! What I liked the most is the incredible diversity of sea life. And the divermasters were so knowledgeable in the dive sites that they knew just where to look to find the most amazing sea life. Although this was a Photo Workshop, I only had a Go Pro and there was plenty to photograph!
The boat was very comfortable and we had many divers that had specific food requests that always considered at every meal. The entire staff was amazing and very accommodating to every need.
I would recommend this trip to a diver that has some experience as there were sometimes very strong currents and sometimes reduced visibility.
But I enjoyed this trip so much that I am actually planning on going back again. There is so much to see and experience in the Sea of Cortez!

Visited on 08/2019 - Submitted on 03/11/2021
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5

Diving the Sea of Cortez is magical. I love the blend of macro and wide photo ops. I do wish I would have seen some sharks though.
Setting up dream dive destinations with Bluewater Travel is effortless! Great job to all involved. Can't wait for my next adventure with you guys.

Visited on 07/2021 - Submitted on 08/05/2021

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