If you are going to the parks on a day LC is open past 8, so there last to get in some night rides on Boulder Dash. Plus, getting to SFNE early is key. It will give you time to hit the DC and South End coasters, head to the waterpark before it gets too crowded and then go back to the north end. You should be able to finish off a ride on everything by 4 or 5. LC is small, so it doesn't take long to go through and then you can marathon Boulder Dash in pitch black.