The Parana River delta is a huge forested marshland about 20 miles (32 km) northwest of Buenos Aires, Argentina. The area is a very popular tour destination. Guided boat tours can be taken into this vast labyrinth of marsh and trees. The Parana River delta is one of the world's greatest bird-watching destinations.

This image highlights the striking contrast between dense forest and wetland marshes, and the deep blue ribbon of the Parana River.