Captain’s Noon Report-Under Sea August 18, 2018 - - Under Sea- Good action at surface, we have identified 3, Luca Arnone, Drogin and Maze. Maze and Drogin have been very active the past 2 hours and we had a 3/4 body breach by Drogin,
    Captain’s Noon Report-Nautilus Explorer August 18, 2018 - - Explorer-The sun is breaking through the marine layer. We have more sun than last week and the guests are filled with gitty excitement for the possibilities that will come tomorrow.
    Captains Noon Report – Explorer August 16, 2018 - - Explorer - Sharks started coming around just past 7 am and they have been coming hard at the bait. Two males have been coming from all angles in hopes of taking the bait. They have been winning
    The First Report from Bahía de los Ángeles August 19, 2018 - - The day ended with a whale shark jamboree, with five or six different individuals providing super up close and personal encounters.
    Charlie’s Shark Wrangling and More at Guadalupe August 18, 2018 - - In the first ten minutes of wrangling on the last day, a juvenile shark came out of nowhere and did a full breach two times!!

    Captain’s Noon Report-Under Sea August 18, 2018 - - Under Sea- Good action at surface, we have identified 3, Luca Arnone, Drogin and Maze. Maze and Drogin have been very active the past 2 hours and we had a 3/4 body breach by Drogin,
    Captain’s Noon Report-Nautilus Explorer August 18, 2018 - - Explorer-The sun is breaking through the marine layer. We have more sun than last week and the guests are filled with gitty excitement for the possibilities that will come tomorrow.
    Captains Noon Report – Explorer August 16, 2018 - - Explorer - Sharks started coming around just past 7 am and they have been coming hard at the bait. Two males have been coming from all angles in hopes of taking the bait. They have been winning
    The First Report from Bahía de los Ángeles August 19, 2018 - - The day ended with a whale shark jamboree, with five or six different individuals providing super up close and personal encounters.
    Charlie’s Shark Wrangling and More at Guadalupe August 18, 2018 - - In the first ten minutes of wrangling on the last day, a juvenile shark came out of nowhere and did a full breach two times!!

Our Values – Our Culture

Nautilus boats are built for Safety
Built for Safety

Most divers would be shocked if they knew what was going on in the engine room and below decks of many liveaboard diving ships. 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.

Our commitment to safety >

Luxurious Liveaboard Diving
Excellence in Guest Experience

Captain Mike has led the way for the last twenty-seven 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.

Our guest experience >

Hostess Marcella pours drinks at the bar
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 seventy crew and thirty-five 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.

Meet our crew >

Choose from 4 stabilized, ISM safety certified ships

Nautilus Explorer Liveaboard Diving Boat
Nautilus Explorer

Canadian shipyard built from the keel up with a thoughtful design intended to support operations from the chilly current swept waters of Alaska to the equatorial heat of Clipperton Island. Recently lengthened to 132 ft, the Explorer was the world’s first SOLAS safety certified dive boat.

NAUTILUS BELLE-AMIE Liveaboard Dive Boat
Nautilus Belle Amie

The “Belle” is our newest ship, launched in 2015. At 147 feet she is a big, beautiful and very popular liveaboard that is more like a small ship than a dive boat. Guests enjoy ultra-quiet rooms, spaciousness and comfortable, stabilized crossings.

Nautilus Under Sea Liveaboard Diving Ship
Nautilus Under Sea

Formerly the Undersea Hunter of Cocos Island and IMAX fame, the Nautilus Under Sea is one of the most beloved live aboard dive boats in the world. With a new full-width superstructure, enclosed dive deck and lengthened to 105 ft, the Under Sea is perfect for smaller groups of just 18 divers.

Nautilus Gallant Lady

Our new Gallant Lady is beautiful and combines the luxury of a Broward yacht with thoughtful liveaboard dive boat design. This 113 foot yacht features 6 large suites, accommodating 12 guests, and 1700 horsepower along with hydraulic stabilizers, speeding you wherever you want to go.

Real-time Ship Locator

Latest Blog Posts

Sea of cortez Whale Sharks

The First Report from Bahía de los Ángeles

The day ended with a whale shark jamboree, with five or six different individuals providing super up close and personal encounters.

The great white "Persephone," photo by Rita Montiero

Charlie’s Shark Wrangling and More at Guadalupe

In the first ten minutes of wrangling on the last day, a juvenile shark came out of nowhere and did a full breach two times!!

A great white misses the tuna at Guadalupe, Photo by Martin Graf

Keith and Deb’s Sharky Trip on the UnderSea

To say that the dives were amazing is a complete understatement! For me, it exceeded all my expectations. We were almost instantly surrounded by sharks and they were CLOSE!