Sardine Run Mag Bay (Citizen Science Expedition)

Our Standard package delivers the complete field science experience, including hands-on eDNA sampling, live plankton microscopy, all expedition equipment, and guidance from a PhD Marine Biologist. Upgrading to the Premium package takes the science from the beach to the lab, directly funding the rigorous processing of the samples we collect together. This covers DNA extraction, amplification, next-generation sequencing, and bioinformatic decoding, which allows us to create highly accurate wildlife inventories for your specific time and location. Ultimately, the genetic sequences from your expedition are formally published to GenBank (the global open-access genetic database) under your name, cementing your personal, lasting contribution to marine conservation.

Think of eDNA as a genetic barcode left behind in the water. As marine life—from microscopic plankton to massive whale sharks—moves through the ocean, they naturally shed cellular material like skin cells, mucus, and scales. By filtering the seawater and sequencing these "invisible footprints," we can identify which species are present without ever disturbing or even seeing them. This non-invasive technology is revolutionizing marine biology by allowing us to detect rare or endangered species, map hidden biodiversity, and provide crucial early-warning alerts for invasive or harmful species before they can disrupt the local ecosystem.

Swimwear, towel, biodegradable sunscreen, a light jacket or windbreaker (especially in winter), and a sun hat. We provide all scientific gear, snorkel equipment, wetsuits (in winter), and your regional gourmet lunch.

Because the Magdalena Bay Sardine Run is a high-action, open-ocean event, participation is strictly limited to guests between 10 and 70 years of age. Snorkeling in pelagic waters alongside fast-moving baitballs, marine mammals, and predatory fish requires confident swimming skills, physical endurance, and high energy. To ensure both the safety of our guests and the integrity of our field operations, we cannot accommodate very young children or elderly guests on this specific deployment.

October to December

The Sardine Run is a highly demanded activity and also dependent on ocean conditions. We monitor meteorological models closely and will not authorize a departure if north winds exceed 12 knots. Contact us with your dates, and we will verify the weather and seat availability before taking your deposit.

We offer a 100% full refund for cancellations made at least 72 hours prior to your expedition departure date.

All our expeditions require a minimum of 6 passengers to confirm departure. If your selected date has not reached this minimum, we will contact you 72 hours before the scheduled departure. At that point, you will have the option to reschedule to a confirmed date, upgrade to a private buyout to keep your current date, or receive a full refund of your deposit.