While the three "entrance-fee-free" weekends in the National Park System are now behind us, the debate over the propriety of park entrance fees no doubt will go forward, if not heighten, in the wake of some impressive visitor numbers logged by some parks. One organization that you won't hear lobbying for a permanent waiving of the fees, though, is the American Recreation Coalition, which was a strong voice for them more than a decade ago and continues that stance today.