Port of Manzanillo's Ecological project

To reduce the environmental damage generated by the construction of the second phase of the Specialized Container Terminal (ECT), the port of Manzanillo, Mexico, has started dredging canals and creating islands in the lagoon of the Valle de las Garzas, a protected area located in the vicinity of the maritime area.

With this work the port plans to allow more fluid entry into the lagoon, greater oxygenation and green islands will be built with an ecosystem by planting more than 15,000 mangrove plants. It's rumored that these islands will be connected by causeways with access for both recreational and scientific uses.

Here's a link to a page from the Port of Manzanillo which includes plans and fotos (in Spanish)

PROGRAMA DE RESTAURACION LAGUNA VALLE DE LAS GARZAS MEDIANTE DRAGADO DE CANALES Y CREACION DE ISLETAS

Revillagigedo Islands

The Revillagigedo Islands (Spanish: Islas Revillagigedo), or Revillagigedo Archipelago are a group of four volcanic islands in the Pacific Ocean, known for their unique ecosystem. They have been part of Manzanillo municipality of the Mexican state of Colima since 1861, but are nevertheless under Mexican federal jurisdiction, and lie 386 km southwest of Cabo San Lucas, the southern tip of Baja California peninsula, and between 720 and 970 km west of Manzanillo.

Revillagigedo Islands on Wikipedia