Turn North onto Idaho Road which is SR88 and follow North. Be sure to go right and stay on SR88. Continue following SR88 past the old Bluebird Mine to the Lost Dutchman State Park. Turn right into the park. The views are breathtaking.
Parts can be pretty hairy, but it's definitely worth the trip.
There is a trail over the saddle when you reach the top that takes you behind the Flatiron and has a great view to the South. This is one of the best trails near Phoenix with great views and a good workout. There is lots of climbing along the trail. You need to use your hands very often. Children will enjoy the trail tremendously.