It's the world's largest paddlesports expo, according to host Rutabaga, with dozens of demonstrations, workshops and presentations plus discounts on boats and gear. Bike-O-Rama, with discounts on bicycles and gear, is next door. At Alliant Energy Center.

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The National Eagle Center is sponsoring narrated paddlewheeler cruises, live-bird programs, presentations and storytelling.

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The parade is at 1:30 p.m. and runs from Capitol Square.

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In Chicago, they really do dye the river green. Watch the dye job at 10:45 p.m. from the Michigan Avenue or Columbus Drive bridges, then watch the noon parade through Grant Park. Navy Pier also is celebrating with Irish and Celtic music.

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