You can find many fantastic cities in Southern California, like Ontario. This friendly city has many attractions to check out, from concert venues to parks and museums. Fun things to do in Ontario, California, include seeing a concert or sporting event at Toyota Arena, experiencing indoor skydiving, and exploring the Ontario Museum of History & Art. You can also find many attractions on the city's outskirts, like National Parks, luxurious spas, and other specialty museums. Keep readi...