Oklahoma

Carter County

Divers will travel far and wide to find the best diving. But those who live in the United States have plenty of great diving on their doorstep as well, with plentiful access to the Atlantic Ocean, the Pacific Ocean and the Gulf of Mexico. From warm-water reefs to temperate seas, here are some of the top places to scuba dive in the United States.

United States

there are more platforms and wreckage. check at the dive shop at Marina /beach. Jay has rentals if you forgot any thing . He is open noon to 5:30 Friday and all day Saturday and Suynday.
June and July not great  visiblilty  even after 2 thermoclines. 
Much better in May but need wetsuit.
Caution zebra mussels very sharp and get on every thing WEAR GLOVES. 

Lake Murray State Park.  Marietta landing