World Heritage Identification Number: 554
World Heritage since: 1993
Category: Natural Heritage
WHE Type: Protected Areas & National Parks
Transboundary Heritage: No
Endangered Heritage: No
Country: 🇲🇽 Mexico
Continent: Americas
UNESCO World Region: Latin America and the Caribbean
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El Vizcaíno Biosphere Reserve: A Haven for Marine Life
The El Vizcaíno Biosphere Reserve, situated in the heart of the Baja California Peninsula, serves as a significant haven for a diverse array of marine life. Inscribed as a UNESCO World Heritage Site in 1993, this expansive reserve spans over 24,930 square miles, making it the largest wildlife refuge in Mexico. It shares its border with the northern edge of the Valle de los Cirios Protected Area of Flora and Fauna.
More to come…UNESCO Description of the World Heritage Site
Located in the central part of the peninsula of Baja California, the sanctuary contains some exceptionally interesting ecosystems. The coastal lagoons of Ojo de Liebre and San Ignacio are important reproduction and wintering sites for the grey whale, harbour seal, California sea lion, northern elephant-seal and blue whale. The lagoons are also home to four species of the endangered marine turtle.
UNESCO Justification of the World Heritage Site
Criterion (x): The Whale Sanctuary of El Vizcaino contains the most important breeding grounds of the Eastern subpopulation of the North Pacific Grey Whale. Its protection is intricately linked with saving the species from extinction and recovery after near-collapse due to excessive commercial whaling. Many environmental factors, such as depth, temperature, nutrients, and salinity coincide in Ojo de Liebre and San Ignacio lagoons to make them ideal mating, breeding and calving grounds. The lagoons also provide valuable habitat for numerous other marine mammals, such as Bottlenose Dolphin, California Sea Lion and Harbor Seal. Four species of marine turtles have been recorded in the lagoons and adjacent coasts, the most important being the green and the loggerhead sea turtles. The shallow, well-protected lagoons with their mangrove stands are also highly productive nurseries for a diverse fish fauna and boast rich invertebrate fauna, and an impressive natural landscape and seascape. The surrounding wetlands attract an extraordinary diversity and abundance of resident and migratory bird species with several hundreds of thousands of wintering birds. The drier terrestrial areas belong to the Sonoran Desert, well-known for its remarkably diverse flora and fauna and a high degree of endemism.
Encyclopedia Record: El Vizcaíno Biosphere Reserve
The El Vizcaíno Biosphere Reserve, created in 1988, is located in Mulegé Municipality in northern Baja California Sur, at the center of the Baja California Peninsula between the Pacific Ocean and the Gulf of California. With an area of over 24,930 km2 (9,630 sq mi)), it is the largest wildlife refuge in Mexico and borders the northern edge of the Valle de los Cirios Protected Area of Flora and Fauna.Additional Site Details
Area: 369,631 hectares
Number of Components: 2
Coordinates: 27.79222 , -114.22778
IUCN World Heritage Outlook
The 2025 Conservation Outlook on Whale Sanctuary of El Vizcaíno reports the following assessment:
Source: International Union for Conservation of Nature (IUCN) · View assessment
Image
© The Gentle from San Diego, California Republic, CC BY-SA 2.0 Resized from original. (This derivative is under the same CC BY-SA license.)
