Home Movie Song Selection - Beginning a Trip

I'm working on the slideshow/movie for our family's last vacation (Alaskan cruise), and am stuck on a song. I need something for the beginning of the slideshow. It would go over pictures of people getting ready for the trip, the various families at their respective airports, arriving at the departure city, and getting ready to board the ship.

What would be ideal is a song like "I'm On My Way" by the Proclaimers, but I've used that one before. Anybody have any other suggestions for a good journey-beginning song?