The Fourth of July is a big patriotic holiday in the US, but it isn’t the only one. The National Park Service has a ton of great activities, many of them free, at the National Parks, and in the US, fourth graders can go free and take the whole family with them (also free). State and county parks also often have free or inexpensive special events, especially during the summer. If you are on vacation, check out the government-funded parks wherever you are visiting. Some of them are spectacular.