Each year since 1968 the River Walk is magically transformed into the River Shannon with eco-friendly green dye. This year it is brought to you by Maddogs. This is a very exciting time to visit the River Walk and watch the amazing transformation. A bagpiper plays on the barge as the river is transformed. Free viewing available along the entire 2 1/2 mile downtown portion of the River Walk. The color is instantly apparent and intensifies with water movement by the boats. The second-day application creates an even richer color. It's a great time to sit outdoors on a patio and enjoy a pint, or two...