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  1. All Liveaboards-
  2. Nautilus Under Sea

Nautilus Under Sea

Nautilus Under Sea is a premium liveaboard offering thrilling diving adventures in Mexico, featuring comfortable cabins, expert guides, and unforgettable encounters with great white sharks, manta rays, and whale sharks. 


4|5

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Trip Dates and PricesView Special
Nautilus Under Sea - image
Trip Dates and PricesView Special

Trip dates, price & live availability

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Socorro - giant mantas, sharks and dolphins

14 DEC

2025

8 nights

(9 days)

3/19 spots

available

from

$3,393

Select Cabin

14

DEC

2025

From

$3,393

Socorro - giant mantas, sharks and dolphins

8 nights (9 days)

3/19 spots available

Select cabin
Socorro - giant mantas, sharks and dolphins

3 MAY

2026

8 nights

(9 days)

1/19 spots

available

from

$3,344

Select Cabin

3

MAY

2026

From

$3,344

Socorro - giant mantas, sharks and dolphins

8 nights (9 days)

1/19 spots available

Select cabin
Socorro - giant mantas, sharks and dolphins

19 MAY

2026

8 nights

(9 days)

11/19 spots

available

from

$3,344

Select Cabin

19

MAY

2026

From

$3,344

Socorro - giant mantas, sharks and dolphins

8 nights (9 days)

11/19 spots available

Select cabin
Socorro - giant mantas, sharks and dolphins

31 MAY

2026

8 nights

(9 days)

11/19 spots

available

from

$3,244

Select Cabin

31

MAY

2026

From

$3,244

Socorro - giant mantas, sharks and dolphins

8 nights (9 days)

11/19 spots available

Select cabin
Socorro - giant mantas, sharks and dolphins

16 JUN

2026

8 nights

(9 days)

14/19 spots

available

from

$3,244

Select Cabin

16

JUN

2026

From

$3,244

Socorro - giant mantas, sharks and dolphins

8 nights (9 days)

14/19 spots available

Select cabin
Orcas and Mobulas

12 JUL

2026

7 nights

(8 days)

15/19 spots

available

from

$2,694

Select Cabin

12

JUL

2026

From

$2,694

Orcas and Mobulas

7 nights (8 days)

15/19 spots available

Select cabin
Mobula rays, orcas and whale shark ultimate combo

19 JUL

2026

10 nights

(11 days)

15/19 spots

available

from

$3,693

Select Cabin

19

JUL

2026

From

$3,693

Mobula rays, orcas and whale shark ultimate combo

10 nights (11 days)

15/19 spots available

Select cabin
Whale Shark Ultimate in the Sea of Cortez

8 AUG

2026

7 nights

(8 days)

18/19 spots

available

from

$2,744

Select Cabin

8

AUG

2026

From

$2,744

Whale Shark Ultimate in the Sea of Cortez

7 nights (8 days)

18/19 spots available

Select cabin
Mobula rays, orcas and whale shark ultimate combo

15 AUG

2026

10 nights

(11 days)

1/19 spots

available

from

$3,693

Select Cabin

15

AUG

2026

From

$3,693

Mobula rays, orcas and whale shark ultimate combo

10 nights (11 days)

1/19 spots available

Select cabin
Sea of Cortez - 6 Night Get-Away

25 AUG

2026

5 nights

(6 days)

13/19 spots

available

from

$1,300

Select Cabin

25

AUG

2026

From

$1,300

Sea of Cortez - 6 Night Get-Away

5 nights (6 days)

13/19 spots available

Select cabin
6-Night Expedition - Sea of cortez diving

13 SEP

2026

6 nights

(7 days)

12/19 spots

available

from

$2,144

Select Cabin

13

SEP

2026

From

$2,144

6-Night Expedition - Sea of cortez diving

6 nights (7 days)

12/19 spots available

Select cabin
La Paz - Loreto great circle = Sea of Cortez

19 SEP

2026

7 nights

(8 days)

17/19 spots

available

from

$2,644

Select Cabin

19

SEP

2026

From

$2,644

La Paz - Loreto great circle = Sea of Cortez

7 nights (8 days)

17/19 spots available

Select cabin
Whale Shark Ultimate in the Sea of Cortez

26 SEP

2026

7 nights

(8 days)

13/19 spots

available

from

$2,744

Select Cabin

26

SEP

2026

From

$2,744

Whale Shark Ultimate in the Sea of Cortez

7 nights (8 days)

13/19 spots available

Select cabin
Whale Shark Ultimate in the Sea of Cortez

3 OCT

2026

7 nights

(8 days)

13/19 spots

available

from

$2,744

Select Cabin

3

OCT

2026

From

$2,744

Whale Shark Ultimate in the Sea of Cortez

7 nights (8 days)

13/19 spots available

Select cabin
La Paz - Loreto great circle = Sea of Cortez

10 OCT

2026

7 nights

(8 days)

1/19 spots

available

from

$2,644

Select Cabin

10

OCT

2026

From

$2,644

La Paz - Loreto great circle = Sea of Cortez

7 nights (8 days)

1/19 spots available

Select cabin

Cabins

Premium Suite Upper Deck - image

Premium Suite Upper Deck

Air Conditioning (AC)
Fan Ventilator
TV
Wifi
Toilet
Shower
Bathtub
Hair Dryer
Safe
Refrigerator
Stateroom Lower Deck - image

Stateroom Lower Deck

Air Conditioning (AC)
Fan Ventilator
TV
Wifi
Toilet
Shower
Bathtub
Hair Dryer
Safe
Refrigerator
Triple Stateroom Main Deck - image

Triple Stateroom Main Deck

Air Conditioning (AC)
Fan Ventilator
TV
Wifi
Toilet
Shower
Bathtub
Hair Dryer
Safe
Refrigerator

Features & facilities

Boat features & facilities

  • Large diving deck

  • Spacious sundeck with ample seatings

  • Multi-media entertainment center

  • Large-deck mountable Pro-Lab with a self-contained movie/video

  • Camera workstation

  • SAT-COM telephone access available upon request

  • Large diving deck

  • Spacious sundeck with ample seatings

  • Multi-media entertainment center

  • Large-deck mountable Pro-Lab with a self-contained movie/video

  • Camera workstation

  • SAT-COM telephone access available upon request

  • Internet via WI-FI

Dive features & facilities

  • 3 powerful 24-foot skiffs which can receive up to 9 divers.

  • Full rebreather support

  • Tri-mix support with helium

  • Bail-out and rebreather cylinders

  • Support for all types of totally closed-circuit rebreathers (CCR)

  • Scrubber material and high-pressure oxygen

  • 3 powerful 24-foot skiffs which can receive up to 9 divers.

  • Full rebreather support

  • Tri-mix support with helium

  • Bail-out and rebreather cylinders

  • Support for all types of totally closed-circuit rebreathers (CCR)

  • Scrubber material and high-pressure oxygen

  • All meals & non-alcoholic drinks included

Important Note: Prices listed below exclude 5% Tax

Liveaboard Locations

The trips to Socorro start and end in Cabo San Lucas, Mexico.

Dive Overview

Huge manta rays, sharks, and humpback whales are some of Socorros underwater stars.

[Read More: Socorro Dive Travel Guide]

Accommodation Overview

  • Premium Suites - Emerald
  • A large premium suite on the sun deck can be configured into two full beds or one large bed. A flat-screen TV, multiple windows, ensuite, plenty of storage space, individually-controlled air conditioning, and easy access to the hot tub.
Nautilus Under Sea
  • ADA Compatible Stateroom - Rosario
  • Adjacent to the dive deck. Wheelchair friendly. Twin beds. Huge window! Ensuite with private shower and individually-controlled air conditioning.
Nautilus Under Sea
  • Staterooms - A, B, C, D, E & F
  • Lower deck. Upper and lower beds. Configuration varies between the 6 staterooms. Ensuites with private showers and individually controlled air conditioning.
Nautilus Under Sea
  • Triple Stateroom
  • Triple-Main deck. 2 bunk beds, with 1 of the bunks for extra storage. Ensuite with private shower and individually-controlled air conditioning.
Nautilus Under Sea
Nautilus Under Sea

Ensuite Bathroom

Nautilus Under SeaNautilus Under Sea

Nautilus Under SeaNautilus Under Sea

Important Note: Prices listed below exclude 5% Tax

More information

Practical information

Time Zone

UTC-6

Local Currency

Mexican Peso (MXN)

Language

English & Spanish

Payment methods

Cash

Boat specifications

Year Built: 1968

Length: 105 feet

Beam:24 feet

Construction Material:Steel with teak deck

Engines: Twin Caterpillar 240 HP

Tenders: One 25ft. heavy-duty fiberglass dive boat. One 32 ft. custom high-speed aluminum dive skiff.

Generators: Two 65kW + 1 emergency genset

Voltage: 110/208 VAC 12-24 VDC

ISM safety certified audited by Bureau Veritas, VSAT, Satelite Phone

Compressors: 2 x water cooled Coltri MC-30

Passengers: 18

Cabins: 9

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