If you love the great outdoors, mother nature, and the smell of fresh air, nothing will please you more than a nice camping trip. If you have little ones camping with you, pack a few art supplies. When you get to your site, show them how to do leaf rubbings. There are always a variety of leaves in all shapes and sizes, so trying them all out will take a while. The kids will be happy and you will have some peace and quiet while you relax and watch them.
If your children are old enough, why not buy them a camera to photograph their surroundings? Whether your children go to public school or are home schooled, a report on a recent holiday is always a useful project and those reports are so much more fun to complete if they are illustrated with photographs and artistic projects, such as leaf rubbings done while on holiday.
Teach your child that when taking a photograph, they should take one shot, then move in closer to the desired subject and take a second shot. You want the subject of the photograph to be the majority of the frame. Taking the second shot ensures that you get the better shot from one of the two, whether you were close enough initially or not. These days, with digital photography, you may as well take as many digital photographs as you can to practise technique, after all you only print the ones you want!