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Dive Review of Nautilus Explorer in
Mexico (Western)/Baja California

Nautilus Explorer: "Magdalena Bay Sardine Run: Beyond My Wildest Dream", Nov, 2023,

by Judy Orange, CA, US (Sr. Reviewer Sr. Reviewer 8 reports with 8 Helpful votes). Report 12780 has 1 Helpful vote.

No photos available at this time

Ratings and Overall Comments 1 (worst) - 5 (best):

Accommodations 3 stars Food 4 stars
Service and Attitude 5 stars Environmental Sensitivity 5 stars
Dive Operation 4 stars Shore Diving N/A
Snorkeling 5 stars
Value for $$ 4 stars
Beginners 3 stars
Advanced 3 stars
Comments Diving with bait balls have always been on my bucket list, and as soon as I see "Magdalena Bay Sardine Run" on the liveaboard the Nautilus Gallant Lady, Nov 11-18, 2023, I signed up for it back in December, 2022. The trip is chartered by our LDS (www.oceansafariscuba.com).

The sardine chase is mainly done by snorkeling or free diving, although scuba diving is also available for 2 days at dive sites closer to the mainland. The area is not fully explored and there are few established dive sites. In fact, 4 days of spotting bait balls are done on pangas operated by subcontractors from Cabo San Lucas.

The success of these sardine runs entirely depends on the skill of the panga captains as they have to navigate in open water away from the coastline, sometimes for hours at a time. They mostly rely on bird behavior, such as that of pelicans, to locate these bait balls, and when they spot them, they have to kill the engines at the right moment so that we could jump into the water at a safe but close distance from the action.

Supposedly the sardines run in circles, sometimes in spiralling formations at dizzying speed, to protect themselves from predators. These bait balls would create a feeding frenzy among marlins, dorados or dolphin fish, bonitos, and sea lions. We have witnessed an entire bait ball being devoured by their natural predators. The hapless sardines would also behave as if we are their safe havens. Some of us are engulfed by swirling sardines as part of their centrifugal action. One could reach out a hand and grab a sardine. One time, bait and predators attempt to follow me back to the panga.

The sardines would often form a single ball, but sometimes the little fish converge and disperse in wavy patterns, their silvery bodies sparkling in the blue water like shooting stars in a night sky, a spectacle that far exceeds any videos I’ve seen.

As a variation from this epic drama of nature’s food chain, one day is dedicated to chasing whales, and we are rewarded by several encounters with humpback whales. As soon as they appear on the surface to breathe however, they would dive down and disappear at lightning speed into the deep. There is also a fascinating boat ride through the mangroves and a stroll on land through the sand dunes, another well-known local attraction.

The scuba diving is somewhat marred by low visibility and surge. But the mix of temperate and tropical flora and fauna is intriguing, and the wreck of the WWI submarine Seawolf, full of colorful gorgonians, invertebrates and fish, is a delight.


Although this trip is done mainly by snorkeling or free diving, it is more suitable for intrepid, advance divers who can handle the unpredictability of the open sea and wildlife. Safety is foremost as a consideration for the Nautilus and we are issued individual lifeline signaling devices while diving or snorkeling. At the start of the cruise, a full safety drill is conducted.

Other venues may offer a similar itinerary, but the Nautilus arguably provides the most creature comforts, and thanks to the exemplary skill, experience and dedication of the panga captains, we come away with an experience that is truly extraordinary.
Websites Nautilus Explorer   

Reporter and Travel

Dive Experience Over 1000 dives
Where else diving California, Papua New Guinea, Red Sea, Fiji, Hawaii, Indonesia, Philippines, Mexico, Panama, etc.
Closest Airport Cabo San Lucas Getting There Southwest airline nonstop from Orange County

Dive Conditions

Weather sunny, dry Seas surge
Water Temp 75-77°F / 24-25°C Wetsuit Thickness 5
Water Visibility 50- Ft/ 15- M

Dive Policy

Dive own profile yes
Enforced diving restrictions [Unspecified]
Liveaboard? yes Nitrox Available? no

What I Saw

Sharks None Mantas None
Dolphins Schools Whale Sharks None
Turtles None Whales > 2
Corals N/A Tropical Fish N/A
Small Critters N/A Large Fish 5 stars
Large Pelagics 5 stars

Underwater Photography 1 (worst) - 5 (best):

Subject Matter N/A Boat Facilities 3 stars
Overall rating for UWP's 3 stars Shore Facilities N/A
UW Photo Comments No bucket for camera in pangas, bucket on dive deck of main boat, adequate charging outlets in salon/dining area and in cabins, no unattended charging on boat, overnight watchman
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Note: The information here was reported by the author above, but has NOT been reviewed nor edited by Undercurrent prior to posting on our website. Please report any major problems by writing to us and referencing the report number above.

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