Lake Dardanelle State Park is located on two sites on the lake, one in Russellville, Arkansas and one in Dardanelle, Arkansas, on the 34,300-acre Lake Dardanelle. Both sites include picnic facilities, boat ramps, pavilions, playgrounds and dump stations.

The Russellville Area site features a 10,257 square feet (952.9 m) visitor center with six aquariums, natural and cultural history displays, classrooms and a gift shop. The Visitor Center is open daily from 10 AM to 5 PM, year round. There is a1,861 square feet (172.9 m) fishing tournament weigh-in pavilion that is used for the many fishing tournaments held at the park. Nearby, there is a covered, barrier-free fishing pier. There are 74 campsites and an outdoor amphitheater. The Dardanelle Area site features 18 camp sites.

The park's staff offer many interpretive programs, including guided hikes, nature talks, kayaking, lake tours and demonstrations, evening slide shows and movies.