Cassels-Boykin Park is located in the mid-lake area of Lake Sam Rayburn. This area is known as one of the best locations in Texas for Largemouth Bass due to its flooded timber, lily pads, channels, drop offs and lots of hydrilla. Prime fishing spots near the park include the the Black Forest, Canyons, Deer Stand, Pophers Creek, Atoyac River, Julie Creek, Harvey Creek, Indian Creek, Mud Creek and Veach Basin. Cassels-Boykin Park with its close proximity to great bass fishing, a large pavilion, and ample trailer parking, is a great place to have a large tournament.
The park has 17 campsites with water and electricity. There are two restrooms in the park. no showers are available. A trailer dump station is available. Nine boat ramp lanes are available.