Great idea Indy, and with a fully supported family tour there would be other families so the kids would probably enjoy meeting other kids, who knows could be life long cycling buddies in the making.
another idea is to check out something like cycle oregon weekend - not a tour but another great way to spend time on bikes with the kids and perhaps DH

Originally Posted by
indysteel
Maybe
this will give you some ideas.
Sky King
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Gilles Berthoud "Bernard"
Surly ECR "Eazi"
Empowering the Bicycle Traveler
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