St. Anthony's Triathlon: After 30 years, the triathlon returns to the flat course along the downtown waterfront. Today, triathletes from around the world compete in a 1.5K swim, 40K bike and 10K run. Heats start at 6:50 a.m. at North Shore Park, 901 North Shore Drive NE, St. Petersburg. Free to watch. (727) 820-7790.
Sugar Sand Festival: It's your last chance to see this impressive sand sculpture display using more than 1,000 tons of Clearwater Beach sugar white sand. Guests can participate in free interactive sand sculpting, get tips on sculpting from the masters, watch sculpting demonstrations and children can play in the Camp Hyatt Sandbox. It begins at 10 a.m. at the Hyatt Regency Clearwater Beach Resort & Spa, 301 S Gulfview Blvd., Clearwater. $7, $5 ages 13-18/military/seniors, 12 and younger free. (727) 442-3604.
The Tenors: They've played for Oprah, the Olympics and even the Queen of England, and now the vocal quartet is gracing the Straz Center's stage. Concert begins at 7:30 p.m. in Carol Morsani Hall at the Straz Center in Tampa. $39.50-$55.50. (813) 229-7827.
Cotee River Seafood and Blues Festival: If it's seafood, you're likely to find it at this event with live blues music, a boat and water sports show, kayak demonstrations, Weeki Wachee mermaids and more. Gates open at 10 a.m. at Sims Park, 6341 Bank St., New Port Richey. Free admission. (727) 842-8066.
Restaurant Impossible, 10 p.m., Food Chef Robert Irvine parachutes into Clearwater to help revive Smitty's Restaurant.
SEASON FINALE The Good Wife, 9 p.m., CBS The love triangle between Alicia, Will and Peter will be resolved on the night of the gubernatorial election.
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Find kid-friendly events at tampabay.com/things-to-do.