Explorer Roca Partida

Water Temp75℉/24℃

Visibility100ft/30m

# of divesYesterday: 3

Belle AmieEl Canyon

Water Temp76℉/24℃

Visibility80ft/24m

# of divesYesterday: 4

Under SeaThe Boiler

Water Temp76℉/24℃

Visibility70ft/21m

# of divesYesterday: 4

    Noon Report – Nautilus Explorer April 22, 2018 - - Explorer - We did see school of hammerheads on dive 2, large tunas, and a few Galapagos sharks.
    Noon Report – Nautilus Under Sea April 22, 2018 - - Under Sea - All guests are happy for the diving with mantas, dolphins and sharks on this trip.
    Noon Report – Nautilus Explorer April 21, 2018 - - Explorer - Today at Roca the second dive was on fire. We had one black manta, two mobula rays, and schools of hammerheads and tuna. It was amazing.
    Nautilus dive guide is still surprised! April 23, 2018 - - As a Nautilus Dive Guide new to Socorro, there are still surprises hidden up the sleeves of these incredible islands. Today, the Nautilus Explorer ventured around the point from Punta Tosca towards Roca O'Niel.
    Divemaster Anthony’s Roca Report April 22, 2018 - - Today was a great day at Roca Partida with loads of Hammerhead sharks and a wonderful Manta encounter. This is a unique, secluded place with much to enjoy, from Cabo Pearce to San Benedicto.

Our Culture – Our Cornerstones

Built for Safety

Most divers would be shocked if they knew what was going on in the engine room and below decks of many liveaboards. Safety is not something to ever take lightly. We live and breathe safety with obsessive compliance to our Safety Management System under the watchful eyes of our external auditors. See our passenger and safety certificates here.

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Excellence in Guest Experience

Captain Mike has led the way for the last 27 years in consistent and relentless obsessive attention to detail, and making every trip as excellent as possible. That attention to detail shows up everywhere, from each dive briefing, to the choice of dive sites, to dinner service, to the quality and thread count of our Egyptian cotton bed sheets. We never stop stressing over the details. We never stop trying to do even better.

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Happy Crew, Happy Ship

A happy crew makes for a happy ship and the very best in guest experience. The men and women on our ships come from around the world and share your passion for Mother Ocean. Every one of our 70 crew and 35 shoreside support staff in Mexico and Canada are committed to doing the best they can for you, our guests, and that shines through like a bright beacon of happiness.

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Choose from 3 luxurious, stabilized, ISM safety certified ships

Nautilus Explorer

We custom built our beautiful Nautilus Explorer in 2000 with a laser focus on safety, luxury and the perfect dive boat configuration. Our guests enjoy stabilized crossings on the #1 boat that clients ask for.

Nautilus Belle Amie

Our Nautilus Belle Amie is a new build launched in 2015. This is the largest ship in our fleet and dwarfs her competition. Guests enjoy the ultra quiet rooms, extreme spaciousness and comfortable, stabilized ride.

Nautilus Under Sea

Formerly known as the Undersea Hunter of Cocos Island fame, our Nautilus Under Sea is one of the most beloved dive boats in the world. After renovations in 2016, she gained a full-width superstructure and more!

Latest Blog Posts

bottlenose dolphin is comfortably close with nautilus divers

Nautilus dive guide is still surprised!

As a Nautilus Dive Guide new to Socorro, there are still surprises hidden up the sleeves of these incredible islands. Today, the Nautilus Explorer ventured around the point from Punta Tosca towards Roca O’Niel.

giant manta ray's belly photographed in black and white

Divemaster Anthony’s Roca Report

Today was a great day at Roca Partida with loads of Hammerhead sharks and a wonderful Manta encounter. This is a unique, secluded place with much to enjoy, from Cabo Pearce to San Benedicto.

divers in a skiff, the nautilus belle amie, and roca partida in the distance

A Great Visitor at Roca Partida

There was a school of hammerhead sharks in 80 ft of depth, and bait balls of skip jacks. To finish our day at Roca we had a great visitor: a whale shark! It was not a big one, but still impressive. Socorro did not let us down!

Where are the boats ?

The Nautilus Explorer
Diving at Roca Partida

The Nautilus Belle Amie
Diving at San Benedicto

The Nautilus Under Sea
Enroute to Cabo San Luca

Please check out our full daily Captains’s Noon Reports for more information on the latest diving and weather conditions, as well as any exciting sightings or unusual animal behaviors.