If you want to enjoy the Snowbirds or any of the other Fourth of July festivities make sure you have your Freedom Festival button. For the first year you are required to have your button for riverfront access before 5 PM. Thats when the Thunder Air Show is happening. After 5, everyone is welcome to celebrate the Fourth during the Freedom Festival Fireworks Spectacular. If youre looking for parking, the city offers a free shuttle from the civic center parking lot to Riverside between 7:30 and 10:30 tomorrow night.