Jetton Park is a pretty nice area to get away from the hustle and bustle for a bit. Just be prepared to pay, because if you go on a Saturday or Sunday between March 1 and October 31, you will be paying $3 to get in ($5 for non-residents.)
Once you get in there is quite a bit to do. We took the walking/biking trail which is about 1 1/2 miles long and loops around the park. There are many paths where you can pick up the trail, so just park where you like and walk around. A good portion of the path runs under trees so it's cool and shaded. The path also runs along Lake Norman at parts so you can stroll along and get jealous of all the grand houses on the other side of the lake. There are also a ton of little decks/gazebos where you can bring the family along for a nice picnic. It seemed that each of the decks had a grill next to it, so you could definitely bring along some burgers and dogs and have a nice weekend grill off.
Of course, kids may get bored of walking a loop after five minutes so luckily there is a playground in a very secluded, shaded part of the park. This way you can sit back and take a load off and let the kids burn themselves out!
Jetton Park is definitely a nice way to kill a couple of hours on a weekend.