Nautilus Under Sea
Liveaboard Diving · Mexico
Discover Mexico's pelagic giants aboard a vessel with a legendary past.
About This Vessel
Embark on an extraordinary journey to Mexico's vibrant underwater world aboard the Nautilus Under Sea, an ex-research vessel with a storied past. This liveaboard offers unparalleled encounters with magnificent pelagic species in the Socorro Islands.
The waters off Mexico, particularly around the Socorro Islands, are a diver's paradise, renowned for their dramatic volcanic topography and the incre…
Upcoming Departures
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
(Cabo San Lucas – Cabo San Lucas)
Onboard Amenities
Dining & Beverages
Guests on the Nautilus Under Sea are treated to a delightful culinary journey with a full-board meal plan. Meals are served buffet-style, offering a delicious blend of Western and local cuisine. The chef is adept at accommodating various dietary needs, including vegetarian and vegan options, which can be requested during booking. Throughout the day, a selection of complimentary soft drinks, tea, and coffee are available, along with a constant supply of snacks. For those who enjoy an alcoholic beverage, beer and a fine selection of wines are offered, perfectly complementing the welcome cocktails that set the tone for your adventure.
Dive Equipment & Setup
Dive Area & Sites
The Socorro Islands, a remote archipelago off Mexico's Pacific coast, are a world-renowned destination for spectacular pelagic encounters. Divers frequently come face-to-face with the incredibly friendly giant Pacific manta rays, often experiencing close interactions. The vibrant ecosystem also supports a diverse range of sharks, including hammerheads, as well as playful dolphins, majestic whale sharks, and even humpback whales during their migratory season. The Nautilus Under Sea offers unique itineraries, including 6-day trips to Socorro, with pick-up in San Diego and departure from Ensenada between July and November. The dive deck is well-equipped with ample space for kitting up, gear storage, and dedicated camera stations, ensuring a seamless dive experience. Dives are conducted from tenders, allowing access to the best sites, and Nitrox is available to maximize bottom time.
Important Information
What's Included
Drinking Water · Soft drinks
Not Included & Local Fees
Port Fees ($35) · Gratuities
Airport Transfers
6-day trips to the Socorro Islands include pick-up in San Diego and departure from Ensenada. Hotel transfers are an optional extra.
Dive Insurance Required
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).
Medical Form Required
A valid dive medical certificate or an accepted medical form is required for all guests on this vessel. You can submit a doctor's certificate confirming your fitness to dive, or complete and sign the medical form yourself if the form and operator permit self-declaration. If your answers or the operator's rules require medical clearance, a doctor's approval is mandatory; signing at your own risk does not replace it. Permission to dive remains subject to the operator's requirements. Download the form, complete it for each guest and upload the signed document in your booking area.
Rental Gear
15L tanks: $65 per trip · BCD: $55 per trip
Accommodation
Stateroom
Twin • Lower Deck
The comfortable Staterooms are equipped with twin beds, perfect for individual travelers or friends. Each stateroom includes a private en-suite bathroom and is air-conditioned for optimal comfort.
Triple Stateroom
Twin • Main Deck
Ideal for small groups or families, the Triple Stateroom offers three comfortable twin beds. Each room is air-conditioned and features a private en-suite bathroom for convenience and privacy.
Premium Suite
Double • Upper Deck
Indulge in the comfort of a Premium Suite, featuring a plush double bed for a restful night's sleep. These suites offer a private en-suite bathroom and are fully air-conditioned for your convenience.
Booking & Travel FAQ
How does the booking process work?
Select a cabin and departure on Nautilus Under Sea, 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.
When do I need to pay?
A deposit (usually 25-35%) is due upon confirmation. The remaining balance is typically due 4-8 weeks before departure, depending on the operator.
What documents will I receive?
After your final payment, you'll receive a travel voucher with meeting point, embarkation time, airport transfer details, packing tips, and your full itinerary.
How do I get to the boat?
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.
What certifications do I need?
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.
Can I cancel or change my 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.
Vessel Technical Overview
Vessel Specifications
Navigation & Safety Systems
All routes of this liveaboard
- Sea of Cortez Get-Aways (Cabo San Lucas - La Paz) · 6 nights
- Sea of Cortez Diving La Paz - Loreto Great Circle (Cabo San Lucas - Cabo San Lucas) · 7 nights
- Sea of Cortez Get-Aways (Cabo - Cabo) · 5 nights
- Sea of Cortez Get-Aways (Cabo - Cabo) · 5 nights
- Sea of Cortez Expeditions (San Jose Del Cabo - San Jose Del Cabo) · 7 nights
- Sea of Cortez Expeditions (San Jose del Cabo - San Jose del Cabo) · 7 nights
- Ocean Safari: Mobulas, Whales, and even Orcas (Cabo San Lucas - La Paz) · 7N
- Mexico Sardine Run / Magdalena Bay (Cabo - Cabo) · 8 nights
- Ultimate Combo - Mobulas, Orcas and Whale Sharks (Cabo - La Paz) · 10 nights
- Socorro - Giant Mantas, Sharks and Dolphins · 9 Days / 8 Nights
- Ultimate Whale Sharks in the Sea of Cortez (Cabo San Lucas - La Paz) · 7 nights
- La Paz - Loreto great circle = Sea of Cortez · 7 nights
- Sea of Cortez Get-Aways (Cabo - Cabo) · 5 nights
- Sea of Cortez Expeditions (San Jose del Cabo - San Jose del Cabo) · 7 nights
- Sea of Cortez Expeditions (San Jose del Cabo - San Jose del Cabo) · 6 nights
- Unique Combo - Socorro, and Orcas, and Giant Schools of Mobula Rays (Cabo San Lucas - Cabo San Lucas) · 11 nights
- Ultimate Combo - Mobulas, Orcas and Whale Sharks (Cabo - La Paz) · 10 nights
- Sea of Cortez – La Paz North to Loreto (Cabo San Lucas - La Paz) · 7 nights
Ready to Experience Luxury?
Book your unforgettable diving adventure aboard the Nautilus Under Sea