Sea of Cortez

Destination At A Glance

Water Temperature - 
20°C to 26°C
Ideal Season - 
Year round.
Visibility - 
Air Temperature - 
22°C to 30°C
The Sea of Cortez is home to an amazing diversity of marine life, yet still remains relatively unexplored. For divers interested in marine biology, underwater photography or for those just seeking an adventurous experience, this is an exciting destination.

The Sea of Cortez, also known as the Gulf of California, separates the Mexican mainland from the California Baja Peninsula, one of the longest and most isolated strips of land in the world.

Peppered with small islands, where huge colonies of sealions can be seen basking on the white, sandy beaches, the gulf is fed by many rivers flowing in from the 4,000 kilometres of coastline, including the Colorado.

These waters are home to a rich and unique ecosystem. Humpback whales, manta rays and leather back turtles are migratory visitors, while permanent residents include fin and sperm whales; and grey whales come in winter to mate and give birth. This is also one of the best places in the world to see whale sharks. Water temperatures in the Sea of Cortez vary between 27 to 30 degrees in August and September and 18 to 21 degrees in January and February. This ensures a great diversity of resident and visiting marine life.


The Rocio del Mar is a 30 metre owner operated vessel that has been designed specifically for scuba diving. Launched in 2008, the ship has modern, comfortable and well equipped accommodation for 20 passengers in 10 guest staterooms. The vessel has been designed very much with comfort in mind. The large 580 HP engines are highly efficient and operate with low levels of noise and vibration, while the deep V-shape of the hull enables Rocio del Mar to cleave through the sea with the minimum of surface movement.

The spacious dining area is situated in the lower forward part of the boat to minimize any sense of movement during meals and on the top deck is a large sundeck with a barbecue where guests can relax between dives.

Key Facts
  • 20 guests in eight twin or double cabins on the main deck, two staterooms on the interval deck all with private bathrooms, air conditioning and large windows.

  • Nitrox available at extra cost

  • A comfortable, well managed live aboard offering an exciting itinerary through the Sea of Cortez


While there are no Resorts listed in this area, please take a look at some of the exciting Liveaboards operating in these waters. Click on the Liveaboards tab to find out more.



Innovation House
Boldero Road
Bury St Edmunds
IP32 7BS

Tel: +44 (0) 1284 748010

Fax: +44 (0) 1284 748011

Scuba Tours Worldwide is a trading name of Maldives Scuba Tours Ltd
Registered in England No. 5080568
Registered Address: 70 Lawrence Road, Plymouth, Devon, PL9 9SJ


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