The Parque Nacional Iguazú is 18km from Puerto Iguazú, the town on the Argentine side of the border. From the entrance, follow the Sendero Verde, a short trail through the jungle that offers a chance to spot butterflies, birds and coatis. You can also opt to ride the free Tren Ecológico de la Selva (Green Jungle Train, every 30 minutes). In any case, your first destination is Estación Cataratas. Two walking trails depart from this point, offering incredibly varied perspectives of the waterfalls.
