Fifth annual Morton Plant Mease Triathlon: The Morton Plant Mease Triathlon kicks off at 6:50 a.m. with a 1/3-mile open-water swim at Sand Key Park, 1060 Gulf Blvd., Clearwater. From there, participants will bike 13 miles through Clearwater Beach over the Memorial Causeway and through Clearwater. The final leg consists of a 3.1-mile run in Sand Key Park. (727) 953-9198. Visit www.mpmtriathlon.org/triathlon/home.asp.
Cross Roads Summer Market: 9 a.m. Free. Cross Roads Market location, Curlew and Belcher roads, Palm Harbor. (727) 784-9690.
Downtown Dunedin Craft Festival: The eighth annual festival returns with a blend of contemporary original works at affordable prices. 10 a.m. to 5 p.m. Free admission. Main Street Dunedin, 271 Main St., Dunedin. (954) 472-3755; www.artfestival.com/events/visitorsShow/111.
Disaster Preparedness for People and Pets: SPCA Tampa Bay will teach you how to protect yourself and your pets. Meet with multiple emergency rescue organizations and discuss their roles in disaster preparedness and recovery and devise a plan of action for all family members, including animals, before disaster strikes. Presentations and displays both days by Bay-Area Disaster Animal Response Team, NOAA Hurricane Hunters and Florida Blood Mobile. Guests will be able to donate blood during the two-day event. Noon to 5 p.m. Free. SPCA Tampa Bay, 9099 130th Ave. N, Largo. (727) 586-3591 or visit www.spcatampabay.org.
Women's Lifestyle and Wedding Extravaganza Show: Exhibitors feature products and services for all aspects of party planning. Includes a fashion show, food samples and an auction. 12:30-4:30 p.m. $10. East Bay Country Club, 702 Country Club Drive, Largo. (813) 679-2310.
Bark at the Ball Park IV: Take "man's best friend" out to a ball game! Fido's welcome to join you to see the Florida State League's Clearwater Threshers take on the Dunedin Blue Jays and check out adoptable pets, pet-friendly raffle baskets and a post-game run of the bases at your side. Gates open at noon. Benefits the Humane Society of Pinellas. 1 p.m. $5-$9 humans, $5 dogs. Bright House Networks Field, 601 N Old Coachman Road, Clearwater. (727) 467-4457.
Tarot Meet-up: Geoff Beardsley will facilitate a discussion of tarot cards and their relationship to the kabbalah. Do you have a new deck you would like to show? Would you like to see other decks and experience different reader's styles? All skill levels are welcome. 1-3 p.m. Free. Oak Trail Books/Witch's Brew, 1219 Florida Ave., Palm Harbor. (727) 785-1960; www.meetup.com/tarot-360.
The Boys Next Door: Touching play by Tom Griffin about four mentally challenged men. 2 p.m. $18, $15 seniors/students/military. West Coast Players Theatre, 21905 U.S. 19 N, Clearwater. (727) 437-2363; www.wcplayers.com.
Strings Attached Trio: A classical concert featuring selections from Handel's Water Music. 3 p.m. Free. Dunedin Public Library, 223 Douglas Ave., Dunedin. (727) 298-3080.
Opera's Unsung Heroes: The New Century Opera Chorus presents favorite opera choruses. Directed by Constantine Grame. 3 p.m. $15, $13 students/members. Tarpon Springs Cultural Center, 101 S Pinellas Ave., Tarpon Springs. (727) 942-5605; www.tarponarts.org.
Dave Hardin in Concert: Dave Hardin, a roots musician and songwriter, will perform 7:30-9:30 p.m. Advance tickets $10. The Painted Fish Gallery, 350 Main St., Dunedin. (727) 734-5060; www.paintedfishgallery.com.
Itty Bitty Splashtime: Parents and caregivers can enjoy the companionship of others while their children ages 5 and younger enjoy the cool waters of the pool's splash area. 9:45-10:45 a.m. $1.50, 2 and younger no fee. Highland Recreation Complex and Family Aquatic Center, 400 Highland Ave. NE, Largo. (727) 518-3016.
Worldwide Stamp Club: Anyone with an interest in stamp collecting is invited to attend the club's monthly auction and meeting. 4:30-6:30 p.m. Free. Clearwater East Library, 2251 Drew St., Clearwater. (727) 669-1280.
Bingo: Early bird bingo at 6 p.m.; followed by regular bingo at 7. Smoking allowed outside on covered deck. 6-9 p.m. Free admission. VFW Post 10304, 724 Tuskawilla St., Clearwater.
Singing is life: The Palm Harbor Crystal-Aires Men's Barbershop four-part harmony chorus invites all male singers to come and see if this hobby might appeal to you. The chorus meets every Monday. Call Wes at (727) 784-8052. 6:45-8:45 p.m. Palm Harbor Community Activity Center, 1500 16th St., Palm Harbor. www.crystalaires.com.
East Coast Swing Dance: Step out for a night of East Coast Swing dancing to the music from the 1940s and '50s. The evening will begin with a group lesson followed by the social dance. All ages welcome and no partner is required. 7-11 p.m. $7 per person. Dr. William E. Hale Senior Activity Center, 330 Douglas Ave., Dunedin.
Tai Chi: Learn the movements of tai chi at a relaxed pace. 9:30-10 a.m. $3 with ID card; $4 without. Dr. William E. Hale Senior Activity Center, 330 Douglas Ave., Dunedin.
Muvico Free Family Film Festival: Each summer, movie theaters throughout the Tampa Bay area offer parents a chance to give their air conditioners a break by offering free kid-friendly movies a couple mornings a week. Part of the proceeds from refreshment sales benefit the Starlight Children's Foundation of Florida, a nonprofit group that helps families suffering through the illness of a child by providing entertainment and family friendly activities. The feature is Harry Potter and the Half-Blood Prince. Doors open at 9 a.m. The movie starts at 10 a.m. The movie is free, but refreshments cost extra. Palm Harbor 10, 37912 U.S. Highway 19 North, Palm Harbor. (727) 944-2282; www.muvico.com/freefilmfest.asp.
Countryside Library Activities: The Countryside Library presents a comedy/magic show for kids with audience participation. 2-3 p.m. Free. Countryside Library, 2741 State Road 580, Clearwater.
Clearwater East Library Activities: The Clearwater East Library offers various themed crafts for the family. 2-3 p.m. Free. Clearwater East Library, 2251 Drew St., Clearwater. (727) 669-1280.
Art House Film Series: The Dunedin Public Library's series of films that stimulate thought. This portion features the 2010 PG-rated film Leap Year. In the film, a woman has an elaborate scheme to propose to her boyfriend on Leap Day, an Irish tradition. 2 p.m. Free. Dunedin Public Library, 223 Douglas Ave., Dunedin. (727) 298-3080.
Singles Meeting: The Upper Pinellas Singles, a group of active seniors 50-plus, meet weekly for dinner, a program and socializing. 6 p.m. $7 per person. First United Methodist Church of Dunedin, 421 Main St., Dunedin.
Dunedin Blue Jays: Kraft Singles Tuesday Night Tickets: Buy one ticket, get one free from Kraft Singles with purchase. Bring your package wrapper to a Dunedin Blue Jays game for the discount. Visit www.milb.com/kraftsingles for more information. Exclusions apply. It's also Muvico $1 Popcorn Night, where baseball fans can win free tickets to Muvico Palm Harbor 10. Fans can buy $1 buckets of popcorn and if they have tickets at the bottom of the bucket, they're a winner. Games start at 7 p.m. $6. Dunedin Stadium, 373 Douglas Ave., Dunedin. (727) 733-9302; dunedin.bluejays.milb.com/index.jsp?sid=t424.
Teen Tidalwave Tuesdays: Teens and 'tweens between ages 11-17 can hang with friends and enjoy swimming, snacks, games and prizes in and around the pool. 7:15-9:15 p.m. $3. Highland Recreation Complex and Family Aquatic Center, 400 Highland Ave. NE, Largo. (727) 518-3016.