Turtle Release Escobilla Sanctuary and crocs in Ventanilla.

This tour combines two ecosystems on the Oaxaca coast: La Escobilla, one of the most important sea turtle nesting beaches in Mexico, and the Ventanilla lagoon, home to crocodiles and a wide variety of birds. It's built around ecotourism, with the idea that visitors and the local community share equally in discovering and protecting these natural resources — booking supports the conservation of both areas.

La Escobilla, known as "El Santuario de las Tortugas" (The Turtle Sanctuary), stretches roughly 25 kilometers along the coast in the municipality of Santa María Tonameca. Numerically, it's the most important sea turtle nesting site in Mexico and one of the most important in the world, with turtles arriving to nest along its sands.

From there the tour moves into the mangroves and coastal forest around Ventanilla, described as one of the most complex and productive ecosystems on the planet. Reptiles and birds nest and live among the mangroves — woodpeckers, kingfishers, diving ducks, a wide variety of herons, crocodiles and iguanas, several of them endangered species. Beyond sheltering this wildlife, the mangroves are major producers of oxygen, help prevent erosion along the coastline, and help regulate temperature and humidity for the plant and animal life that depends on them.

It's a good fit for travelers interested in wildlife and conservation who are comfortable with a day spent outdoors, walking and observing rather than swimming or resting on a beach. The tour is suitable for all physical fitness levels, though it isn't recommended for travelers with spinal injuries or poor cardiovascular health; infants and small children can ride in a pram or stroller, and specialized infant seats are available.

The tour includes a bilingual guide and air-conditioned transportation within the urban area of Huatulco; bottled water and entrance or admission fees are not included, so bring cash for those. Pack a hat, sunblock, insect repellent, sunglasses, a bottle of water and shoes you don't mind getting sandy or wet.

One detail worth confirming when you book: the source material notes that from August to early November, turtle sightings are rare because it falls outside the nesting season — conservation efforts continue year-round, but the actual release of turtles during those months depends on wild turtles arriving naturally, so it's worth checking current conditions with the operator before your visit.