When the Hillsborough River starts turning green Saturday for this year's River O'Green Fest, ponder this: The dye they use is actually orange.
We know this because Thursday, the city did a test run to show how it works, and that was one of the gems that emerged. When the orange dye -- all 200 pounds of it -- reacts with the water, it turns it a bright kelly green.
That's perfect for the day's events, focused around Curtis Hixon Waterfront Park. There will be live entertainment, games, kids activities, food trucks and beer (o'course!)
Admission is free, and well-behaved pets on leashes are also welcome. The event runs from 11 a.m. to 4 p.m.
Anyone who brings three non-perishable goods for the Salvation Army will receive a free St. Patrick's Army shirt.