Do they have grills that are available near boat ramp? Are they free? Thanks for the info everybody.

Not at the boat ramp. Each pavilion has one.

only at camp. sites and picnic area

The campsites are in-ground fire pits with a grate. They don't want people picnicking at the ramps, so don't provide anything.

Only at the picnic areas

Not near the boat ramp. There are some day use areas that do. And all the campsites do.