I am still mapping out the 100 different adventures and plan on having a range spanning a bunch of skill and difficulty levels. So hopefully you will find some that you can take your wife and a six year old on.
There are so many adventures out there though that I could write an entire book on "100 Adventure To Take Your Wife and Child On". If enough people want it anyway.
The other aim of my book is to spark ideas for adventure. So perhaps, even if you don't find something you like, it might prompt you to think of something similar that's adapted to your needs.
Selling "the dream" to people with kids is something few try, and it's a very large market.
No, seriously. I'm giving away my stuff, have already found a sailboat, and am preparing to sail from Chicago to New Zealand with my wife, where I'll continue my IT career and we'll have a kid or two. I'm 30, my wife is 29.
You can have any adventure you want; just decide to do it.
I think what Clark's writing about is great and inspiring and everyone should do more of it. However, for me to be interested in a how-to book, it has to be something that actually applies to me, and skiing from the North Pole isn't something I can do with a kid.