I don't have pics to post of me right now (they are all just solo pics anyway)...
but my biggest piece of advice for a group that size, especially if there are kids involved, is to take a LOT of pics.
You can take several with one photographer, but also take them in different locations, each park, as many times as you group is willing to stop and take a picture together.
That really increases your chances of getting a picture that is good of everyone.
Some photopass photographers are GREAT and do a wonderful job taking several pictures and trying to capture a good one...and some are just there for a job and snap and let you move on. You won't know until you get home and you can't go back to capture the moment.
So takes bunches!!!
And take some at night and during the day...the night ones can be really cool if they have the settings on the camera set correctly.
Also...consider getting matching shirts for your family. Those make cool pictures. The ladies (and men) on the DISign board would be glad to help you with a design and you just iron it on shirts. And the CM's, etc, take note of them. Plus it is easy to spot each other.
Have a magical trip!!!!