4-Day Trip

Pick Up From Hotel

Unique Experience

Swim Alongside Marlins on the Mexican Sardine Run

Witness a truly magical event, the marlins herding shoals of sardines in Magdalena Bay. Get in the water and have a front-row seat to see these magnificent creatures at work. You’ll see sea lions and marlins work together to direct the fish as the birds hunt from above — the sea comes alive with action. Stay on Magdalena Island and feel the magic of this beautiful location.


Swim with marlins and see the waters come alive on the sardine run.

See sea lions and numerous species of birds.

Explore activities on the magical Isla Magdalena.

Stay in Casa Tavo, your island accommodation.

Marlins Group Expedition


1600 USD per person

Departure time

Arranged upon booking

Meeting point

Pick up from your accommodation in Los Cabos, Todos Santos, or La Paz.


Monday — Sunday, October 15th – December 30th


4 days, 3 nights

Group size

2-8 people — up to 10 people if 6 of the group agree to sleep in 2 triple rooms with two queen-size beds in each.

Participation requirements

  • Age restriction – all participants must be aged 12 years and above.
  • You need to be a confident swimmer.
  • If it is a windy day (over 15 mph) the activity has to be rescheduled or substituted for another activity.
  • Not wheelchair accessible.
  • Not suitable for people with back problems.
  • Not suitable for expectant mothers.
  • Not suitable for people with serious medical conditions.
  • Certain activities have age limits but we always have an activity available for younger children.
  • Each participant will be required to fill out a waiver before the expedition, the waiver can be found here.


  • 2 full days of expeditions
  • 2 half-day activities chosen by our leader
  • Accommodation in Tavo’s house
  • Meals (Click here to see sample menu)
  • Belts and lead weights
  • Snorkel gear
  • Bilingual instructors/guides
  • All local park and entry fees
  • Local motorized vehicle (car or boat)
  • Refreshments and snacks

Not included

  • Gratuities
  • Personal expenses
  • Alcoholic beverages (beer and wine is available with dinner at no extra cost)

About your guide

  • 1 water & land guide/expedition leader
  • 1 local guide
  • 1 certified captain

Good To Know

The non-extractive activities of observation and swimming with striped marlin (Kajikia audax) are subject to the rules established in a management plan and code of conduct.

Permitted activities:

  • Swimming with bait balls where the following are present: striped marlin (kajikia audax), sardines, sea lions, whales, or other pelagic species.
  • Scuba diving with tanks in or near bait balls where the following mix of species is present: striped marlin, sardines, sea lions, or other pelagic species.
  • Use of equipment to capture underwater footage or images, including the use of lights or flash.
  • Use of equipment to capture aerial footage or images, including drones.


Prohibited activities:

  • Consuming alcohol or drugs while participating in these activities.
  • The disposal of any article to the sea.
  • Not following the captain’s rules.
  • Swimmers must never attempt to touch or have any type of physical contact with marine life.
  • Sudden movements and noises that could drive away any nearby animal.

What You'll Do

Swimming among marlins is not a well-kept secret anymore. Watching the animals come alive, hunting on hundreds of thousands of sardines along with sea lions, seagulls, pelicans, and frigate birds is like witnessing a perfect symphony of life just under the surface of the sea. Marlins and sea lions coordinate to push the giant bait balls of sardines to the surface and hunt on them one by one while seabirds participate in the feast from above.

Observe the elegant dance of the marlins from beneath the water’s surface together with their marine partners. Local fishermen now know that there is more profit in taking people to swim with them than fishing them. As Octavio, our local partner, tells us: “We used to kill marlins and sharks, but now we protect them because we’ve learned that they are much more valuable alive”.

You will have the opportunity to enjoy this spectacular marine show as many times as possible while having the privilege of staying on Magdalena Island in a tiny fishing village to experience the old Baja lifestyle at its best. Far away from city noises, lights, and distractions. Occasionally, we can get lucky and see some mako, silky, or hammerhead sharks too.

What to Bring

  • Wetsuit (3-5mm highly recommended, available for rent upon request)
  • Mask, fins, snorkel (we will provide with basic gear)
  • Comfortable walking shoes
  • Passport or INE
  • Proof of dive and travel insurance ( we recommend World Nomads(opens in a new tab) for travel insurance and DAN(opens in a new tab) for dive insurance)
  • Sunblock SPF 30+ (reef-friendly is mandatory)
  • Spending money for personal expenses
  • Insect repellent
  • Hat, buff, and polarized sunglasses
  • Layers of clothes (for the Pacific breeze)
  • Rain jacket
  • Bathing suit
  • Dry bag
  • Beach towel
  • T-shirts and shorts
  • Sweatshirt and long pants
  • Warm, waterproof jacket
  • Sandals or shoes that can get wet
  • A canteen or water bottle
  • Any special foods or medications (seasickness tablets, waterproof bandaids for fin sores, electrolytes)
  • Camera topside and/or underwater protection
  • Spare batteries for headlamps, cameras, etc.
  • SD cards
  • USB stick

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