We've just returned from our 4th charter with kids in last 5 years. 2 families, with 3 kids. Kids are now 11/12/13. They were 6/7/8 when we first took them. Each trip has been better than the last. Highlights for kids:

Snorkeling- Eastern shore of anchorage at Norman. Cistern Point at Cooper is great- smaller ones can hang nearer the dinghy line while older/stronger swimmers can venture towards end of point where current can get a bit stronger.

Willy T for early (!) lunch before the party begins, and a few jumps off the top deck has always been a hit.

Spending a night Dockside at Scrub was a big hit this year (though not cheap). Leverick is always fun too, and a much better deal. Both have pools.

We love hanging by Saba Rock in North Sound. Saba rock itself is great, but also have option to go to shoreside stuff at Bitter End (dinghy fleet, pool, beaches), or dinghy over to Prickly Pear for some beach time.

They have also really enjoyed hanging at Cow Wreck on Anegada.

Bubbly Pool on JVD, though after 3 years my kids were kind of over it.

This year we made a stop at Sandy Spit instead. Snorkeled in, circumnavigated the island and hung out for a bit, which was great fun for all.

Last year we all finished our PADI certifications so the kids are now all divers which has added a great dimension to the whole thing, though they need to be 10 to do that.

Our routine is to get going early, keep our sails relatively short, and be where we are going by lunch so we have afternoons to explore, or chill.

Its a great trip for kids. Have fun!