We Know Because We Go! | Book with a 5-Star Team,| Trusted by 10,000+ Divers
We Know Because We Go! | Book with a 5-Star Team,| Trusted by 10,000+ Divers
Diving in the Sea of Cortez offers encounters with whale sharks, sea lions, hammerheads, manta rays, and vibrant reefs, earning its nickname “The Aquarium of the World.”
Average flight time from LAX
4
Scuba Dive Level
All Levels
Visibility
50 to 115 feet (15 to 35 meters)
Average Water Temperature
70
Pelagic Encounters
Whale Shark Encounters
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.
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. For an in-depth look at Baja California scuba diving highlights, explore our detailed guide.
For those interested in capturing the vibrant marine life of the region, our Sea of Cortez Photo Workshop – 2027 offers expert-led photography sessions amidst encounters with sea lions, whale sharks, and more.
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.
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.
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.
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.
La Paz is serviced by Manuel Mrquez de Len 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 (Loreto International Airport – LTO), 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 and add 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.
There are several dive resorts in the Sea of Cortez along with a few liveaboard options. Divers will find most of the diveresorts 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.
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 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!
