Where is a good place to take our whole family of 9 for a week of fun with a pool included and lots of activities for kids? Our grandchildren range from 1-7 years. We have already taken cruises, stayed at the OBX, stayed in Tenn. and at a lake cottage. We would like to stay in a big house with 3 floors and a pool included, but have run out of ideas of locations. We are from Ohio, Indiana, and Michigan.