We did the Family Magic Tour during the summer of '06 and it still is one of our fondest WDW memories. My children were DS12, DD7 & DS4 at the time. They absolutely loved it! It takes place in MK and you go with your tour guide and your group on an adventurous scavenger hunt throughout the park. It truly was alot of fun and you get to enjoy the MK on a whole new level. You do not go onto Tom Sawyer's Island. There is a surprise at the end and you do participate in one attraction together as a group. I HIGHLY recommend it!!!!
Have a great time!