Quick info: New Hampshire state parks. This pass allows admittance for two adults and up to four dependents at all day-use parks except the Flume Gorge, Cannon Mountain Aerial Tramway, Wallis Sands State Beach, South Beach, Hampton Beach State Park, camping, or parking meters. Pass DOES NOT guarantee access. Advanced day-use reservations are the only way to guarantee access to a park. Pass may be checked out the day before or the day of your planned visit, but no earlier. Click here to reserve a pass.