A gateway to the entire World Birding Center network, Harlingen’s Arroyo Colorado is close to major highways and an international airport, but remains a quiet wooded retreat from the hustle of urban life. Connected by the arroyo waterway, as well as hike-and-bike trails meandering through the city, Hugh Ramsey Nature Park to the east and the Harlingen Thicket to the west anchor an important reservoir of nature in a fast-changing world.