Río Tárcoles is a river located in Costa Rica, flowing through the central part of the country. It is known for its rich biodiversity and serves as an important habitat for various species, including the famous American crocodile. The river is approximately 111 kilometers long and eventually empties into the Gulf of Nicoya. The surrounding area of Río Tárcoles is popular for eco-tourism, attracting visitors who come to observe wildlife and enjoy the scenic views. The river's banks are lined with lush vegetation, making it a prime spot for birdwatching, with numerous species such as herons and kingfishers frequently spotted.