Why not capitalize on that at your retreat. The rise of MP3 players has made it quite easy to curate a collection of music that will be meaningful to your group that can be played in the background during meeting breaks, free times, and maybe even as sing-alongs.
You can plug your player, iPod, cell phone, etc. into the media rack at Rainbow Lodge and begin linking new memories. Might even be fun to have music of different generations. Pick just a few, put them on a loop, and let the connections begin.