The Rainforest Ecological Train or Waterfalls Train (Tren Ecológico de la Selva or Tren de las Cataratas) is a narrow gauge train that runs through the forest inside Iguazú National Park in the north of the province of Misiones of Argentina.
The line is long and was built using rail track by French manufacturer Decauville.
The train can transport up to 150 passengers over of track from the Visitorsâ Centre to Cataratas (Waterfalls) Station and Garganta del Diablo (Devil's Gorge) Station. It carries approximately 900,000 visitors yearly.
The train was built in England by Alan Keef Ltd, in Ross-on-Wye. It is painted green and the propane-fired locomotive pulls up to five opened-roofed carriages with wooden seats at the sides so that the passengers can view the forest.
The tracks run along the Iguazu River and the train runs at speeds of up to , stopping when animals cross the lines. The journey takes about 20 minutes. From Garganta del Diablo (Devil's Gorge) Station visitors can go to a viewing platform built on the edge of the huge waterfall high called Garganta del Diablo.