There are plenty of places to park in downtown Orlando near Lake Eola, including metered parking, parking garages, private paid parking, and side streets. Please note that parking meters are enforced on Saturdays, including a restriction on parking for more than two hours at a time. If you violate the rules, you WILL get a ticket.
The event takes place on the Northeast side of Lake Eola Park. Please keep that in mind when parking. Here is a map of downtown parking locations. Here is parking information on Downtown Orlando. Click here for even more parking options.