Sea Lion in the sea of Cortez

Immerse Yourself in the Sea of Cortez

Mobulas & Orcas
Ultimate Whale Sharks
5 & 7-Night Expeditions


January – July: Peak Animals
Mid-July – November: Peak Diving
September – March: Most Popular


Liveaboard, Yacht Charters, Ocean Safaris
Base Camp, Day Trips

PRICING (pp. dbl occ.)

Mobulas & Orcas: From US$4,050
Ultimate Whale Sharks: From US$2,895
7-Night Expedition: From US$2,795
5-Night Expeditions: From US$2,095

Destination Overview


Your Summer Get-Away Begins Here
Dive the World’s Aquarium

The Sea of Cortez is a diver’s paradise. With its unique ecosystem and the overall natural beauty, have earned a UNESCO World Heritage Site status. We have been diving here for almost 5 decades and every time it has been exciting! Come see firsthand why this sea is called the “Aquarium of the World” and all of it’s natural wonders.

Meet the playful sea lions of Los Islotes, surround yourself in a tornado of big eye jacks and schools of skipjacks. Lets not forget the huge pods of dolphins, turtles, mobulas, sperm whales, gobies, the hammerhead sharks around El Bajo & Los Animas, whales of all types of descriptions, shipwrecks and night dives. And if you’re lucky, giant mantas swimming around La Reina and orcas.

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Sea Lions

The Sea of Cortez is Vibrant with Life

The Sea of Cortez is loaded with life from huge pods of inquisitive dolphins, sharks, giant whale sharks, friendly sea lions, mobula rays, cow nose rays, sperm whales, swirling tornadoes of fish and sometimes even Manta Rays. Whales of all descriptions visit over the winter and into spring. Huge squadrons of mobula rays numbering upwards of 100,000 aggregate every spring, orcas have been frequent visitors over the last several years. Also, hammerhead sharks migrate into the sea in May and stay until early winter.  

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Easy Non-Stop Flights to Cabo San Lucas

We are closer than you think. Over 30 major airports around the world have direct non-stop flights to Cabo San Lucas (SJD). With seamless La Paz transfers included on all multi-day adventures. It’s never been so easy to get to the Sea of Cortez and Baja!

Nautilus Scout

Spotter Plane - Whale Watching Tours

Nautilus Scout – Spotter Airplane

Crewed by our own pilot and naturalist, Nautilus Scout will be up in the air 5 to 6 days a week, often on 2 missions a day between May – August, to maximize our guests experience and guide them towards the most interesting marine life including some really BIG animals. Blue whales, giant pregnant whale sharks, orcas and huge schools of mobula rays being our speciality.

Mobulas & Orcas Adventure

Sea of Cortez Tours: Diving with Orcas

Orcas Ocean Adventures

We have you covered with mobulas & orcas. Whether you want to get an early start on an Ocean Safari, or join a liveaboard trip on our 116-ft expedition yacht or try something really exceptional and enjoy a luxury sailing yacht charter with family or small group of friends. We know exactly how to get you onto the schooling mobulas and much more.

April – Mid-July
Yacht Charters – Available
Liveaboard – from US$4,050 pp.

Sea of Cortez Tours: Diving with Mobulas

Huge Schools of Mobula Rays and the Possibility of Orcas. Spotter Airplane Supported!

The Sea of Cortez is a magical and wonderful place teeming with marine creatures of all sizes. Our guests encounter and interact year-round with friendly California sea lions and mega pods of bottlenose dolphins. If we are lucky, we might also encounter spinner and Risso’s dolphins. Mobula rays are present year-round and aggregate in enormous schools from March through July. Colossal fin whales (second in size only to blue whales), sperm whales, rays, and whale sharks are present year-round and migrate seasonally up and down the Sea of Cortez. Pilot whales, pseudo orcas, and minke whales are also known to migrate in the area, although they are less commonly seen.

Humpback whales, including mothers and calves, arrive in December and January, while giant blue whales and their babies are present from the end of January through April. Thanks to our extensive local knowledge and aerial patrols, we provide the best opportunities for encounters, which are always conducted with the utmost respect and only on the animals’ own terms. It’s entirely their choice to swim over and check us out.

Divers with abundant experience agree that the vast schools of fish witnessed by our divers, snorkelers, and swimmers create the most densely packed fish tornadoes seen anywhere in the world. Hammerhead and tiger sharks have made a comeback after 20 years of tightly restricted commercial fishing.

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What Guests Have to Say About Orcas

Amazed by the Abundance and Diversity of Marine Life in the Sea of Cortez.

I’m constantly amazed by the abundance and diversity of marine life in the sea of Cortez I’ve seen over the 5 years I’ve been living and working in Baja California. Read full review

Celina dive guide onboard the Nautilus Explorer

Did Someone Say Orca?

WHAT A CHANCE OF A LIFETIME THAT WAS. An opportunity came up with some friends to go snorkeling and swim with mobulas and orcas in the open ocean of the Sea of Cortez. Read full review

Stephanie, California onboard the Nautilus Gallant Lady

Ultimate Whale Sharks

Ultimate Whale Sharks Swimming

Ultimate Whale Sharks
Sea of Cortez Adventures

Fly into SJD Cabo. Transfer and depart from La Paz to board your  liveaboard. We’ll dive some of our old favourites like Las Animas (which has been sharky this year and always good for sea lions) with overnight transits to visit the best of Loreto, including going ashore on beautiful Carmen Island, diving and visiting remote Isla San Pedro Martir, jewel of the Sea of Cortez and home to the largest colony of blue-footed boobies in the world!

June – October
8 Days, 7 Nights
From US$2,895

Heammerhead Shark

San Pedro Martir

We have special permits to visit San Pedro Martir, the hidden jewel of the Sea of Cortez. Perfectly located at the edge of massive upwellings of nutrient rich deep ocean water, the waters around this biosphere reserve are teeming with life. Shoreside is really cool as well with the largest breeding population of blue footed boobies in the world as well as the largest populations of brown boobies and brown pelicans in the world.

Loreto is another gem that is seldom visited. The diving is great. The scenery is fantastic. Going ashore on the deserted white sand beaches is unforgettable.

We will be sure to visit all our old favourites including Las Animas, the pinnacle of San Franciscito, Espiritu Santo and La Reyna. Fingers crossed on hammerhead sharks!!

What Guests Have to Say About Ultimate Whale Sharks

More Than What I Was Expecting

This trip has been fascinating and way more than what I was expecting. Upon boarding this ship I was shocked at how beautiful and comfortable the ship is. Read full review

Chic onboard the Nautilus Gallant Lady

First-Class Experience for Divers of All Skill Levels

The Gallant Lady by Nautilus is a beautifully well-appointed ship built to provide a best in class live aboard SCUBA diving experience for an intimate number of guests. She holds only 12 divers but on the trip I was booked on, there were only six divers in the group! Read full review

Vic Joshi onboard the Nautilus Gallant Lady.

7 Night Expeditions

Sea of Cortez Tours: Diving with Tornado fish

Sea of Cortez 7 Night Expeditions

We have been running this trip since 1978 and have learned a thing or two about where to find the best diving in this part of the Sea of Cortez! Las Animas, La Reyna (fingers crossed on a giant manta), El bajo, Espiritu Santo, our secret pinnacle off San Franciscito and an easy overnight run to the spectacular scenery, gorgeous white sand beaches and diving of Loreto.

Boards in La Paz to get you right out to our favourite dive sites. You can expect an average of 4 dives a day including night dives and the same spirit of adventure as the old days on our Alaska trips with shore expeditions, kayaking and paddle boarding, beach walks, swimming and that beautiful Mexican night sky from your hot tub.

Includes spotter airplane support looking for big critters.

Insider Tips: Seas are generally flat calm in the Sea of Cortez this time of year. visibility and water temps improve dramatically in July. By September you can expect water temps in the mid 80’s and visibility of 100 – 150 ft.

July – October
8 Days, 7 Nights
From: US$2,795 pp. dbl occ.

Sample Itinerary

Fly into SJD. Cabo.

Day 1

Meet at SeeCreatures San Jose del Cabo, coach transfer to La Paz

Days 2-7

Diving and having fun during the day and travelling in the evening or overnight to get to new dive sites. The speciality of this trip is exploring the loop from La Paz up to Loreto and back stopping in at our favourite “classic dive sites” as well as new sites that we have recently discovered. We are proactively exploring all the time and even after all these years, we are finding new dive sites. Your captain and dive guides will maximum the experience based on changing conditions and where the best animal sightings are.

Day 8

Breakfast and disembark by 08:30 am. Complimentary transfer back to SJD or Cabo SeaCreatures.

5 Night Expeditions

Sea of Cortez: Tornado fish dive

Sea of Cortez 5 Night Expedition

6 days / 5 nights in the Sea of Cortez on a luxury liveaboard for a great deal!!!

Las Animas, La Reyna (fingers crossed on a giant manta), El bajo Los Islotes, Espiritu Santo and more!! 15 dives including night dives.

Meets in Cabo and boards in La Paz to get you right out to our favourite dive sites. We have been running trips to these dive sites for over 40 years and have learned a thing or two about how to maximize your dive vacation.

Insider Tips: Seas are generally flat calm in the Sea of Cortez this time of year. visibility and water temps improve dramatically in July. By September you can expect water temps in the mid 80’s and visibility of 100 – 150 ft.

July – October
6 Days, 5 Nights
From: US$2,095 pp. dbl occ.

Sample Itinerary

Fly into SJD. Cabo.

Day 1

Meeting at SeeCreatures Cabo 5 pm to board your ship. Sail off to the Sea of Cortez with drinks and dinner as the sun sets.

Days 2-5

4 Full days of adventure. You can expect to visit Cerralvo Island, La Reyna, Las Animas, Espiritu Santo and more with days full of diving, snorkelling, swimming, beach and shore hikes, kayaking and paddle boards. Divers can expect 15 dives including 2 night dives with tornadoes of fish, sea lions, moray eels, shipwrecks and much more with fingers crossed that the mantas are at La Reyna. Water temps in the mid 80’s and visibility should be spectacular! Complimentary discover scuba experience for non-divers.

Day 6

Disembarks in Cabo 8:30 am.

What Guests Have to Say About Sea of Cortez

The Staff Was World-Class

I couldn’t recommend the Nautilus more. It was such a great week sailing the Sea of Cortez. Read full review

Nicole, San Francisco onboard the Nautilus Explorer

The Particular Magic of the Sea of Cortez Is That You Never Know What You’re Going to See

Our second and third days of diving were all about the sea lions. We saw sea lions on every dive and it was nothing short of amazing. Read full review

A. Clark, New Jersey, USA onboard the Nautilus Explorer

Dive your own way!

Sea Lion in the sea of Cortez

Dive Your Own Way

We cater to the entire spectrum of diving experience and fitness. Our super experienced dive guides are there for those who are new to diving. Experienced divers are welcome to explore most of our dive sites at their own pace with or without a dive guide. We are there to guide and critter point for whoever wants it. Note that in national parks, divers are required to stay with our dive guides.

Operated For Safety

Gallant Lady, Sunset
Gallant Lady, Sunset

Operated For Safety

Safety is a very serious business. Mother Ocean can be capricious and unforgiving. We hold ourselves to the highest standards and you should expect and demand no less. In our view, every dive boat should be operated within a certified ISM safety management system, outfitted with sprinklers, emergency smoke hoods for everybody and the same safety, fire, life saving equipment and radios as the largest cruise ships. Captains, mates and engineers should have professional commercial mariner qualifications and all crew should have STCW professional mariner certification. Safety is not something to publish in a brochure. It’s part of our DNA. A cornerstone of our culture. Something that we have been living by for every day of the last 30 years.

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