Nature lover, bird watchers and those interested in Amerindian cultures will be delighted by this small, friendly, landlocked nation.  The Paraguay River divides the nation into two separate regions: the Chaco, which includes jungle, marsh and scrub to the west and fertile, grassy farmland; and hilly, forested country to the east.  The arid Chaco region is home to the majority of the indigenous population, the Guarani people.  The other ecosystems include marshland, savanna, subtropical farms, ranches and rain forest.  The Iguazú Falls are not in Paraguay but are easily reached from the Ciudad del Este over the 90 m (300 ft) Puente de Amistad.