The Grand March is a traditional way in which to being a formal ball. All
the couples line up in promenade order, and prance around the hall in
various figures. This is a really simple set of figures, because I didn't
want to get people lost on the first dance. I also wanted to end up in two
lines ready for the next dance.
This march above really isn't too great if you have a mixture of adults and
children, because the arches are hard on your back.
Here's another one which works better in the intergenerational situation:
You can run the Part I through more than once, and finish up with Part 2,
which leaves you in a circle. At this point it is fairly common to re-attach the lines into a spiral, which is wound ever more closely. ("Winding up the Ball of Yarn")