Anzalduas County Park Enjoy a large picnic area. Because of the curvy river, visitors actually look north into Mexico from a pavilion and large boat ramp. One mile west of Highway 494 south of Mission. Open daily until dark. The Arroyo Colorado is a short river that originates southwest of Harlingen as a last-minute offshoot of the Rio Grande.
Arroyo City is the jumping off point for anglers and boaters.
Wildlife of the Laguna Madre ventures up well into the river's mouth. Adolph Thomae County Park on FM 2925 has boating, fishing, hiking, picnic facilities, and RV and tent sites. To Arroyo City, from Harlingen, take Highway 106 through Rio Hondo, then FM 2925 north. Hugh Ramsey Nature Park near the river lets nature lovers enjoy walking the trails and observing wildlife. Camping facilities, picnic areas and full hookups are available as well as tours.