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Cabo San Lucas Underwater

By Laura Tyrrell, PADI IDC Staff instructor and dive guide at Cabo Trek

The Sea of Cortez is a unique and rich ecosystem home to a plethora of tropical fish families accessible to scuba divers and snorkelers. The bay of Cabo San Lucas and the rocky coast line of the so called “Corridor” leading all the way up to the San Jose Marina, boasts an abundance of these colourful and inquisitive animals right below your boat. It might take you a while to find Nemo in these waters but in the mean time you can enjoy swimming among fishes such as the huge colourful Bumphead Parrotfish or try and spot the juvenile Rockmover Wrasse as it disguises itself as a small leaf drifting along in the current. Below are some of the most unique and interesting fish that can be found in our waters.







Porcupine fish

Often the one that everyone wants to inflate! And unfortunately, the one that hangs dried out inflated in souvenir shops all around town. Please don’t encourage this by buying one! Resembling a balloon, this fish blows itself up when threatened so it’s spikes are ready to puncture a predator’s mouth. Another defense mechanism is that they are extremely poisonous when eaten being 1200 times more poisonous than cyanide. They look very cute with their big eyes but they have been known on several occasions to eat their way out of predator’s stomachs!

King Angel Fish

A beautiful bright fish that can be seen among the rocky crevices along the coast. They remain in pairs their whole lives. Sometimes when we are scuba diving they will mistake our bubbles for food and try and swallow the bubbles.

Moorish Idol

The Moorish Idol got its name from the Moors of Africa who thought that the fish would bring them happiness. They are very distinctive for their long dorsal fin.

Mexican Hogfish

These fish inhabit shallow rocky reefs and take advantage of eating tiny mollusks that are uncovered by disturbing the sand: as we do with our fins sometimes. They all start out their lives as females and continue as solitary animals, turning into males when the desired social situation arises. Interestingly (like other members of the wrasse family) at night time they find a small crack in the rocks and settle in for a sleep.

Parrot Fish

These are always the most impressive to find. They vary in shape and size but are always brightly coloured. These fish gnaw at the rocks and coral with their robust teeth, turning it into fine sand through the digestion process.

And there are plenty more, such as butterfly fish, blennies, scorpion fish, shark if you’re lucky, mobula mantas, turtles, eagle rays, sea horses, octopuss just to name a few.

If you ever wondered what if feels like being submerged in an aquarium here you’ve got the chance to do so above or under the surface of the Ocean, if you are more adventurous you could try scuba diving, even non certified people have the chance to do so by enrolling in a daily discover course, other wise even by snorkeling there are plenty of opportunities to see great wildlife…not as close as diving though!

Take action, life is out there and it’s blooming right at the moment as the waters are starting to warm up.


Cabo Trek focus is on educational tours in Baja California Sur region, please check out our other activities:

Philipp Moser

Scuba in Cabo

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