Nautilus Explorer

Location: Mexico

Rating: 4.4/5 (105 reviews)

About Nautilus Explorer

A 44.8-meter steel-hulled liveaboard purpose-built for comprehensive dive expeditions across Mexico's remote Pacific waters.

Far from the Mexican mainland, a collection of volcanic islands rises from the deep Pacific, functioning as oceanic outposts for the ocean's largest inhabitants. These isolated archipelagos, notably Socorro and Guadalupe, are magnets for pelagic life. Nutrient upwellings around their submerged pinnacles attract schooling hammerheads, whale sharks, and the region's famous giant manta rays. This is a world of big animal encounters set against stark volcanic topography. The Nautilus Explorer was designed specifically for the long-range expeditions required to access these demanding and highly rewarding marine environments. Diving operations are structured for efficiency and safety. The vessel deploys three large dive skiffs for rapid transport directly to the action. This system places divers in the water with precision and minimizes surface waits. The dive deck is spacious and well-organized, providing ample room for gear setup. A dedicated, multi-level camera station with charging points and compressed air offers photographers the facilities needed to manage their equipment. All dives are led by experienced guides with extensive knowledge of the local sites and animal behaviors, ensuring a well-managed underwater experience. Life aboard is centered on comfort during extended trips at sea. Accommodation for 25 guests is spread across 13 cabins, with configurations including Staterooms, Superior Suites, a Triple Stateroom, and a Premium Suite. Each private room is air-conditioned and functionally designed for rest and storage. The indoor lounge serves as the social hub for meals and briefings, while outdoor decks provide views of the open ocean. The vessel’s remote itineraries mean there is no internet access, a feature that allows guests to fully disconnect and focus on the expedition at hand. Fueling divers for multi-dive days is a key part of the onboard service. The ship's chef prepares a varied menu of hearty, flavorful meals. Cuisine is a mix of international dishes and Mexican-inspired plates. Meals are served buffet-style in the main salon, with snacks and fruit available throughout the day. The crew can accommodate many dietary requirements with advance notification. A selection of soft drinks, juices, and coffee is always available, and a bar offers alcoholic beverages for purchase after the day's diving is complete. Built in 2005 and updated in 2018, the Nautilus Explorer is a purpose-built expeditionary vessel. Its 44.8-meter length and 10.1-meter beam create a stable footprint on the water. The ship's heavy steel construction is a key design feature, engineered to handle open-ocean crossings. This inherent stability is enhanced by a stabilization system, which reduces roll and increases comfort during long journeys. With a capacity for 25 guests, the vessel is a self-sufficient and reliable platform for exploring regions far from shore-based support. The vessel operates distinct itineraries focused on Mexico's premier pelagic sites. Expeditions to the Socorro Archipelago concentrate on encounters with giant oceanic manta rays, multiple shark species, and seasonal humpback whales. Separate voyages travel to Guadalupe Island for cage diving with great white sharks in a controlled setting. These trips are defined by open-ocean conditions and deep-water sites. Consequently, the Nautilus Explorer is best suited for experienced divers and underwater photographers seeking encounters with marine megafauna and who are prepared for multi-day sea crossings.

Vessel Specifications

Length: 44.8m
Guest capacity: 25
Year built: 2005
Nitrox: Available

Cabins

Single Stateroom (sleeps 1) — single — Discover the comfort of our Single Stateroom, thoughtfully designed for individual travelers. Each stateroom features a single bed, ensuring a restful night's sleep. Guests will appreciate the conveni
Superior Suite (sleeps 2) — Double/Twin — Indulge in the spacious comfort of a Superior Suite, encompassing 145 sq. ft. Each suite provides large exterior windows and private facilities. Guests will also find either a desk with a bureau or a
Triple Stateroom (sleeps 3) — Triple Bunk — Ideal for mixed groups, this triple stateroom provides a comfortable retreat with private facilities and central air conditioning.
Premium Suite (sleeps 2) — King — Experience expansive luxury in this Premium Suite, boasting a dedicated bedroom and a separate lounge area. Enjoy breathtaking ocean vistas through a floor-to-ceiling panoramic window. This spacious s
Stateroom (sleeps 2) — Twin/Double — Unwind in your private stateroom, featuring central air conditioning and a dedicated head with a separate shower stall. These 90-square-foot accommodations provide options for sleeping arrangements: e

Itineraries

Socorro Islands Expedition

Duration: 8-10 nights

Journey to the remote Socorro Islands, a volcanic archipelago emerging from the Pacific, forming part of the Revillagigedo Biosphere Reserve. This pelagic-rich environment is renowned for its large animal encounters, including numerous species of sharks, giant manta rays, and dolphins. You will explore the vibrant dive sites surrounding San Benedicto, Socorro, and Roca Partida, each offering unique underwater topographies and abundant marine life. Prepare for open ocean diving in generally clear

Guadalupe Great White Shark Encounter

Duration: 5-6 nights

Embarkation: Unified Port of San Diego

Journey to Guadalupe Island, a volcanic oceanic outpost located off the coast of Baja California, Mexico, where crystal-clear waters provide unparalleled visibility for observing one of the ocean's most formidable predators. This expedition focuses exclusively on cage diving encounters with great white sharks, a unique opportunity to witness these magnificent creatures in their natural habitat. Conditions at Guadalupe are typically calm, with excellent water clarity throughout the shark season.

Socorro - Giant Mantas, Sharks and Dolphins (Cabo San Lucas - Cabo San Lucas)

Duration: 9 Days / 8 Nights

Embarkation: Cabo San Lucas, Mexico

This diving cruise explores Socorro, a remote and wild archipelago designated as a UNESCO World Heritage Site. The trip is renowned for incredible encounters with exceptionally friendly giant manta rays and playful bottlenose dolphins. Divers can also see up to twelve different shark species, including schooling hammerheads and silvertips. The spring and early summer months are highlighted as a prime time for abundant marine biomass, with potential sightings of bait balls, pilot whales, and huge

Socorro - Giant Mantas, Sharks and Dolphins

Duration: 9 Days / 8 Nights

Embarkation: Cabo San Lucas, Mexico

This nine-day expedition to the Socorro archipelago offers a remote and wild diving experience. The trip focuses on encounters with the region's famous marine megafauna, including exceptionally friendly giant mantas, playful bottlenose dolphins, and up to twelve different shark species. The itinerary is particularly special during the spring and early summer, noted as a time of peak biomass with schooling hammerheads, silvertip sharks, and potential sightings of bait balls and pilot whales. The

Ultimate Combo - Mobulas, Orcas and Whale Sharks (Cabo - La Paz)

Duration: 11 Days / 10 Nights

Embarkation: Cabo San Lucas, Mexico

This expedition through the Sea of Cortez focuses on encounters with large marine animals. The flexible itinerary is designed to find mobula rays, orcas, and whale sharks, along with various dolphin and whale species. Using a spotter plane and local knowledge, the crew seeks out the best wildlife interactions, which can include snorkeling with sea lions and night encounters with mobulas. The trip offers opportunities for both divers and snorkelers to witness the region's rich biodiversity. Max

Sea of Cortez (Cabo San Lucas - Cabo San Lucas)

Duration: 6 Days / 5 Nights

Embarkation: La Paz

This six-day adventure in the Sea of Cortez offers a blend of diving and eco-tourism for up to 25 guests. The trip is designed for both new and experienced divers, with a flexible itinerary that adapts to marine life activity. Guests can explore renowned areas like Cerralvo Island, La Reyna, and Espiritu Santo National Park. In addition to diving, the expedition includes snorkeling, kayaking, paddleboarding, and guided nature hikes, ensuring a comprehensive marine wildlife experience.

Sea of Cortez Get-Aways (Cabo - Cabo)

Duration: 6 Days / 5 Nights

Embarkation: Cabo, Mexico

This six-day cruise explores the vibrant Sea of Cortez. Guests meet in Cabo and board the vessel in La Paz, heading straight to premier dive locations. The trip includes approximately 15 dives, with chances to see sea lions, shipwrecks, and potentially giant mantas. Between dives, activities like kayaking and beach hikes are available in what are typically calm seas with warm water and excellent visibility.

Sea of Cortez Classic (La Paz - La Paz)

Duration: 8 Days / 7 Nights

Embarkation: La Paz

This adventure explores the southern Sea of Cortez, known for its typically calm waters and excellent visibility during the late summer months. The trip focuses on encounters with massive schools of fish, playful California sea lions, and a variety of rays and eels. With the help of a spotter plane, the crew seeks out larger marine life such as orcas, sperm whales, and mobula rays. The flexible itinerary travels from La Paz towards Loreto National Park, visiting renowned sites and exploring new

Sea of Cortez Diving La Paz - Loreto Great Circle (Cabo San Lucas - Cabo San Lucas)

Duration: 8 Days / 7 Nights

Embarkation: La Paz

This eight-day cruise explores the diverse marine ecosystems of the Sea of Cortez, a region Jacques Cousteau famously called the 'aquarium of the world'. The trip starts with optional activities in Cabo San Lucas before guests are transferred to La Paz for evening boarding. The itinerary covers premier dive sites between La Paz and Loreto, utilizing a spotter plane to help locate large animals like whale sharks and giant mantas. Guests can anticipate encounters with California sea lions, various

Socorro - Giant Mantas, Sharks and Dolphins (10 Nights)

Duration: 11 Days / 10 Nights

Embarkation: Cabo San Lucas

This expedition travels to the remote Revillagigedo Archipelago, a UNESCO World Heritage site renowned for encounters with Giant Pacific manta rays that interact closely with divers. You will explore volcanic islands and open-ocean pinnacles, home to numerous shark species including silky, silvertip, galapagos, and hammerheads. The area is also frequented by friendly bottlenose dolphins and migrating humpback whales from January to March.