In Guatemala the Convention on Wetlands came into force on 26 October 1990. Guatemala presently has 7 sites designated as Wetlands of International Importance, with a surface area of 628,592 hectares. Wetland ecosystems are part of Guatemala´s natural wealth. In Guatemala the sites are:  Eco-región Lachuá, Manchón-Guamuchal, Parque Nacional Laguna del Tigre. Parque Nacional Yaxhá-Nakum-Naranjo. Punta de Manabique. Refugio de Vida Silvestre Bocas del Polochic. Reserva de Usos Múltiples Río Sarstún.