We do ours here whenever possible. Me, DH and both kids. We always have a blast.
I don't know about the one this year. Since we probably won't go to Va Beach this wkend. b/c of the storm, we might go the weekend of the Walk. DD has that Monday off from school, giving us an extra day. (OT-- Va Beach, although fun, isn't DW, I wouldn't take her out of school just for this trip! LOL!) However, if we don't take that trip, I am sure we will do the Walk.
I think it is a great experience for the kids. We get them to ask for the donations and explain what it is all about to them.
I did one last year in the fall...late September/early October. We also do a Diabetes walk, but diabetes isn't as well-known or well-regarded as heart disease, which is too bad, because diabetes is a big drain on healthcare today.