Would traveling to the Dells via train be a good option or is it necessary to have a car to get around once you're there? Where is the best place to stay for a family of 6 or 7 with older kids? The water parks aren't the primary focus of our trip, and we would like to stay altogether yet have some privacy w/the option to prepare our own food (and not spend a small fortune on lodging). Also does Wisc Dells have 4th of July fireworks and if so where is the best viewing? Thank you in advance for any help or information!