Each year, the San Antonio River has the unique pleasure of being doused with 35 pounds of (environmentally friendly) green dye and temporarily becoming “the River Shannon.” Beginning at 11am, when the Harp & Shamrock Street Parade steps off (3rd St. and Avenue E.), St. Paddy’s Day celebrations will enliven downtown with traditional Irish music, dancing, and revelry. Festivities continue at the Arneson River Theater (1-6pm), followed by the St. Patrick’s Day River Parade at 3pm, and a pub crawl (6-10pm, $20 in advance at thesanantonioriverwalk.com) along the River Shannon. Free, the San Antonio River Walk, thesanantonioriverwalk.com