Resaca de la Palma State Park features a unique oxbow lake called a resaca, formed by an ancient channel of the Rio Grande. The resaca spans part of the 1,200-acre park located in Brownsville, Texas. While canoeing is mentioned as an activity, paddlers should be aware that the water level in the resaca can be unreliable and it may be dry at times.

The resaca's water takes on a distinctive bright green appearance due to an abundance of duckweed covering the surface. This thick vegetation gives the water a soup-like appearance, creating an unusual paddling environment. Despite its appearance, the duckweed is harmless.

Wildlife viewing opportunities abound, with over 300 bird species documented in the park. Paddlers may spot green jays, whistling ducks, and wild turkeys. The surrounding landscape includes mesquite savannas, thorn scrub, and wetlands that provide habitat for bobcats, javelinas, and coyotes.

The park offers four observation decks overlooking the resaca, which paddlers can use to scout conditions. A visitor center provides exhibits on the park's history, geology, and wildlife. Rentals for binoculars are available to enhance wildlife viewing.

Access to the park is restricted to foot, bike, or tram only. Private vehicles are not allowed beyond the visitor center parking area. The park is open daily from 6 a.m. to 10 p.m., with the visitor center open Tuesday through Sunday from 8 a.m. to 5 p.m.

Paddlers should check with park staff regarding current water conditions and any specific regulations for boating on the resaca. The park's unique ecosystem and rich biodiversity make it a distinctive destination for paddlers interested in exploring this remnant of the Rio Grande's ancient course.