About a half an hour north of SL is Hill Airforce Base Airplane (jets, helicopters, stealths, bombers, etc.,) Museum.  Take the 5600 South Exit at Roy and turn right.  The kids and you will love it.  Be sure to look for the hands' on science room place where the kids can "fly a plane".  You will be amazed at all the stuff you learn about WWII, there are even volunteer Vets around to ask any questions.  If you pack a lunch there are picnic tables to dine under the big planes.