Wilderness Landscape & Natural Heritage
Manialtepec Lagoon is a coastal lagoon located just west of Puerto Escondido in the state of Oaxaca, Mexico. Encompassing a vital estuarine system where fresh water from inland meets the salty waters of the Pacific Ocean, this lagoon supports a diverse and unique ecosystem. The warm, brackish waters foster extensive mangrove forests, mudflats, and wetlands that provide habitat for a variety of fish, bird species, crustaceans, and other wildlife. One of the lagoon's most famous features is its bioluminescence, caused by microscopic organisms called dinoflagellates that illuminate the water during dark, moonless nights, creating a magical natural light show. The area holds cultural and ecological importance and is often a focus of conservation efforts due to pressures from tourism and development.
Visitors come for tranquil boat rides and kayaking experiences among mangroves, excellent birdwatching – including species such as herons, pelicans, and frigatebirds – and especially for nighttime tours to witness the glowing waters. The lagoon's calm environment allows for peaceful exploration and photography opportunities. Nearby local communities benefit from ecotourism related to the lagoon, promoting sustainable interaction with this fragile environment. While not a formal national park, Manialtepec Lagoon is recognized as a protected wetland and ecological reserve, emphasizing preservation of its biodiversity and cultural heritage. Its proximity to Puerto Escondido makes it an accessible destination for travelers seeking both natural beauty and memorable wildlife encounters on Mexico’s Pacific coast.
