If you're trying to knock all of the coasters out right away, you can head to Oktoberfest after riding AC and hit up Bolt, and from Oktoberfest you can hit up Alpengeist in Germany and Griffon in France. After Griffon, you can either walk back to the front of the park to ride Nessie or catch the train in New France, which is a short walk from Griffon. The train will drop you off near Nessie's entrance.