Does the Hilliard location offer child care during workouts? If so, what are the hours and additional cost?

Yes but if your kids have a hard time being separated and cry or have any issues they will constantly come get you during your workout. My friend tried and her children were upset and didn't even get a 10 min workout

They do, and i believe it is from 10am to 5pm. Costs you would need to call the front desk in regards to that.