Socorro - May 27-June 4, 2022

Level of Diving

Diving will be in warm water off of a liveaboard dive boat. Water temperatures are mid to high 70F. Minimum 3mm wetsuit is required, however a 5mm or 7mm is recommended. Most dive sites are suited for intermediate to advanced level divers. Proof of a minimum of 25 logged open water dives in the past 24 months is required.



The Socorro Islands is located west of Cabo San Lucas, Mexico, approximately 24 hour boat ride from shore. The islands that you will be diving include Socorro, Roca Partida, and San Benedicto.

Socorro Island  is a small volcanic island in the Revillagigedo Islands, a Mexican possession lying some 600 km off the country's western coast. It is the largest of the four islands of the Revillagigedo Archipelago.
The giant Pacific mantas which you will meet at Socorro are the largest of the rays and we believe they are the most majestic creatures in the ocean. They swim by moving their wing-like pectoral fins, which can grow up to 7 meters wide, but usually average about 5 – 6 meters. At Socorro, these giants choose to interact with divers! They come in very close – less than 1 meter! – make eye contact with you and then swim along beside you – totally on their terms. 
What is even more extraordinary is that the local population of bottlenose dolphins have learned to mimic the behaviour of the giant mantas. It is very likely that these wild dolphins will also move in close and intimate to divers during your trip.
Shark sightings are also very good at Socorro Island with common sightings of silky, galapagos, hammerhead, white tip and silver tip sharks. Schooling hammerhead sharks may be seen at any time but the best chance to see large schools up close is April – June.
A population of 1200 humpbacks moves into the island’s waters in January and chances are excellent that you will have encounters with these mighty giants. You may even hear them singing through the hull of the ship at night as you lie in your bunk. 


Nautilus Under Sea

The Nautilus Under Sea is the newest addition to the Nautilus family. She has just undergone a massive refit & renovation including the addition of a premium suite on the upper deck, the installation of a new stability system, a bulbous bow, plus an upper deck lounge, bar & hot-tub. Also, she has a new full-width superstructure with dining room, lounge, galley and a giant quad stateroom has been added on the main deck.

Socorro diving operations will be slightly different on this boat than on the other Nautilus vessels. Under Sea will be using a brand-new custom-built 32-foot triple outboard powered 50 mph dive sled modelled on the dive skiff Inde which was used in the Pacific Northwest.

Other interesting facts about the Nautilus Under Sea:
~ 95' x 24' ocean-going dive boat
~ Steel with teak deck
~ Engines: Twin Caterpillar 240 HP
~ Tenders: One 25ft. heavy duty fiberglass dive boat. One 32 ft. custom high speed aluminum dive skiff.
~ Generators: Two 65kW + 1 emergency genset
~ Voltage: 110/208 VAC 12-24 VDC
~ ISM safety certified audited by Bureau Veritas, VSAT, Satelite Phone
~ Compressors: 2 x water cooled Coltri MC-30
~ Full oxygen, nitrox and rebreather service
~ 19 guests, six staterooms, one quad stateroom, one premium cabin




Trip Details

May 27 - June 4, 2022 - Bait Ball Season!

Nautilus Under Sea is a liveaboard dive boat. Eat, sleep, and dive your fins off! Boat will depart from Los Cabos. Prepare to be at sea for a full day prior to arriving at the first dive site. Five intense days of diving... 3-4 dives per day if you choose. Then a full day at sea to come back.


Things Included

  • Diving, aluminum 80 tanks, weight belts
  • In-water divemastering and guiding by experts
  • Housekeeping service and nightly turndown service
  • Towels
  • Snacks, meals, non-alcoholic beverages
  • $375 Socorro Island Park Fee
  • 5% Taxes

Things Not Included

  • Airfare or booking of flights
  • Airport transfers
  • Hotel fees
  • Excess luggage fees
  • Port Fee USD$65 per person (cash only, paid onboard)
  • Travel/dive insurance
  • Scuba gear rentals
  • Nitrox, argon, mixed gases, steel tanks
  • Crew gratuities
  • Gift shop purchases



Double Occupancy (8 spots)  USD$3795    
Triple Occupancy (3 spots) USD$3495   


 All prices/payments are in US dollars.


  • 50% deposit due to confirm your spot
  • 25% due December 31, 2021
  • 25% due February 28, 2022



Flights to Cabo San Lucas are available from a number of airlines. Keep in mind, you will want to arrive the day before to ensure there are no flight or luggage delays. For departure flights, around noon should be the earliest flight in case of delays getting back to port. You will need to meet the boat crew at Tesoro Los Cabos in Cabo San Lucas on the date of departure.






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