
Liveaboard · Mexico
Explore Mexico's "aquarium of the world" in luxury and comfort.
Nautilus Gallant Lady is a boutique liveaboard cruising the Mexico region. It hosts up to 12 divers on board.
Embark on an extraordinary diving adventure through Mexico's vibrant Sea of Cortez aboard the Nautilus Gallant Lady, a luxurious yacht designed for intimate encounters with incredible marine life. The Sea of Cortez, famously dubbed 'the aquarium of the world' by Jacques Cousteau, is a diver's paradise teeming with an astonishing diversity of marine life. This biodiverse region, nestled between th…
Upcoming Departures…
Dining aboard the Nautilus Gallant Lady is a delightful experience, featuring a delicious fusion of fresh Mexican and West Coast North American cuisine. The onboard chef takes pride in preparing a variety of dishes served buffet-style, ensuring there's something to please every palate. Guests can enjoy three full meals a day, complemented by snacks available throughout the day. Complimentary soft drinks, tea, and coffee are always on hand, and the journey begins with welcome cocktails. The crew is highly accommodating of special dietary requirements, including vegetarian and vegan options, provided these requests are communicated in advance.
The Nautilus Gallant Lady offers year-round diving adventures in the Sea of Cortez, a region renowned for its incredible marine biodiversity. From May to October, the liveaboard explores the northern Sea of Cortez, based out of Bahia de Los Angeles. This area is famous for hosting the largest aggregations of whale sharks, providing incredible opportunities for close encounters. Divers can also look forward to interactions with playful sea lions and, for the lucky few, a chance to observe Humboldt squid during thrilling night dives. As the season transitions from September to December, the vessel relocates south to the thriving Cabo Pulmo Marine Park. Often referred to as a 'mini-Galapagos,' Cabo Pulmo boasts a remarkable recovery story and is now home to an abundance of marine life. Here, divers can regularly spot bull sharks, tiger sharks, and sea lions, alongside massive schools of fish and graceful manta rays. The diverse itineraries ensure that every trip with the Nautilus Gallant Lady delivers a memorable Mexico dive experience, promising encounters with an array of captivating underwater creatures.
Drinking Water · Soft drinks
5% VAT · Dive Insurance
All guests must hold valid dive accident insurance to participate in this trip. Proof of insurance must be provided before departure. If you do not have dive insurance, we can assist you in obtaining coverage. · Important — Nautilus policy: A valid dive accident & evacuation insurance is mandatory for every guest on board. If you do not have one, you can purchase coverage directly on board (chargeable). We recommend DAN (Divers Alert Network).
15L tanks: 65 USD per trip · BCD: 55 USD per trip

California King or Double • Lower Deck
The Superior Suites offer a comfortable and spacious retreat, each featuring either a luxurious California King bed or two double beds. Guests will appreciate the individually controlled air conditioning, ample storage space for personal belongings, and a private en-suite bathroom for convenience and privacy.

California King or Double • Lower Deck
The Premium Suite offers an enhanced level of comfort and space, featuring either a plush California King bed or two double beds. This larger suite includes individually controlled air conditioning, generous storage, and a private en-suite bathroom, providing a luxurious haven after a day of diving.

Twin • Lower Deck
Ideal for friends or individual travelers, the Twin Bed Superior Suite provides two comfortable twin beds. This cabin type also includes individually controlled air conditioning, sufficient storage, and a private en-suite bathroom, ensuring a pleasant and private stay.
Select a cabin and departure on Nautilus Gallant Lady, and we send a real-time inquiry to the operator. After availability is confirmed, you receive a booking confirmation by email and secure your spot with a deposit.
A deposit (usually 25-35%) is due upon confirmation. The remaining balance is typically due 4-8 weeks before departure, depending on the operator.
After your final payment, you'll receive a travel voucher with meeting point, embarkation time, airport transfer details, packing tips, and your full itinerary.
Most liveaboards depart from a designated marina. Many operators offer airport pickup and transfers — details are in your voucher. We recommend arriving one day before departure.
A valid dive certification (e.g. PADI Open Water), dive insurance, and a valid passport. Some destinations require additional permits or visas — we inform you during booking.
Cancellation terms vary by operator and are in your confirmation. Generally, the earlier you cancel the higher the refund. Changes depend on availability — contact us as soon as possible.
The headline score is the simple average of the category scores shown below (Boat, Crew, Value, Diving, Dive sites, etc.), each weighted equally. The review count reflects how many source reviews back the underlying analysis. When no category breakdown is available for a vessel, the headline falls back to the guest-weighted average across source platforms.
The Nautilus Gallant Lady is described as a luxurious liveaboard offering intimate dive safaris with a small number of guests. Reviewers frequently highlight the attentive and hard-working crew and excellent food.
Based on approximately 31 reviews. Aggregated rating based on reviews from multiple independent dive travel and operator platforms as well as on ratings from our customers. Public statements from diving forums and community platforms may also be incorporated as text into the highlighted praises and critiques. Ratings are independently calculated and are not affiliated with or endorsed by the source platforms.
Book your unforgettable diving adventure aboard the Nautilus Gallant Lady