
Puerto Vallarta, Mexico – Mexican swimmer Stephanie Montero is set to take on a 43-kilometer open sea swim on May 2, a journey that stretches between Isla Isabel National Park and the Marismas Nacionales Biosphere Reserve in Nayarit. This remarkable challenge is part of the third edition of Nado por las Ballenas, a conservation initiative created to raise awareness about humpback whales and the marine ecosystems of the Mexican Pacific.
The swim will begin in the evening, under safe and favorable conditions, supported by a dedicated team that includes Nado por las Ballenas AC, the Tenth Naval Zone of San Blas, local port and safety authorities, and Conanp, Mexico’s national commission for protected natural areas. Together, they ensure Stephanie’s safety and the visibility of the cause.
Montero’s route links two vital protected areas that are home to a wide range of marine life, including whales, dolphins, coral reefs, and countless bird species. It’s more than just a swim – it’s a symbol of the urgent need to protect these critical habitats.

The effort doesn’t end in the water. On May 3, a beach cleanup will take place at El Sesteo Beach, where Stephanie’s swim will conclude. Organized by Conanp, WWF Mexico, and a coalition of government agencies and community groups, this event aims to unite the public in collective action for conservation.
Since its inception in 2023, Nado por las Ballenas AC has forged alliances with over 120 organizations, generating nearly two million pesos in support of marine conservation. These funds have contributed to the successful rescue of 13 entangled whales, the professional development of a diving team specializing in ghost net recovery, and the removal of significant amounts of harmful marine debris, including 88.7 meters of monofilament nets, 2 kilos of rope, and 3 kilos of lead.
Furthermore, the organization has facilitated the establishment of 11 coral nurseries, provided environmental education to 172 students from Nayarit and Jalisco through the “My Bay and I” program, and organized the impactful First International Garbage Fishing Tournament, which resulted in the collection of two tons of waste.
This year’s goal is to raise 1.5 million pesos to continue these efforts – rescuing whales, reducing plastic pollution, restoring coral reefs, and expanding educational programs. The funds will also support the Zero Bay campaign, which encourages reduced plastic use to keep oceans clean.
With each stroke, Stephanie Montero not only pushes her physical limits but also moves the conversation forward on marine conservation – reminding us that small actions, when multiplied, can lead to lasting change for our seas and coastal communities.
To learn more or support the cause, visit the Swim for the Whales website.