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The Whale Shark Festival is a concerted effort to raise awareness of the need to preserve the area’s marine ecosystem.  It is part of the second largest barrier reef on the planet, and serves as the nursery of the Caribbean and the migratory path of whale sharks as well as sea turtles, water foul and game fishes.

“Sustainable eco-tourism engages guests in the effort to preserve the indigenous culture of Isla Mujeres, their way of life and the marine environment,” said John Vater, who co-founded Ceviche Tours with his wife, Adriana, and longtime friend and Isla Mujeres native Louis Refugo “Cuco” Sanchez and his family. 


“Fishing was the key industry for local Islanders; it’s how they eat, how they make money.  We work with them helping to promote environmental preservation and sustainable eco-tourism as the future for the Island’s people and the economy to sustain Isla Mujeres for generations to come.”

Economic Importance of Conserving Whale Sharks (pdf) 

Saving the Biggest Fish in the Sea
Ecoocean Brochure (pdf)

Project Domino 
Technical Data (pdf)

ceviche whaleshark 1.jpg
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