St. Patrick's Day has been celebrated on the River Walk since 1968 as a joint project of the San Antonio River Walk Association and the Harp & Shamrock Society of Texas. This tradition continues today. Green Bud Light will be sold at the Arneson River Theatre along with Irish and other ethnic foods. Festival entertainment includes hilarious audience participation activities in between the musical entertainment including the Tater Tot Eating Contest, Lucky Dog Parade, and more. This FREE event is made possible by the Irish-loving folks at Bud Light.