Dunedin Green Market opens: The sixth season begins at 8 a.m. in Pioneer Park, at Main Street and Douglas Avenue, with a birthday celebration. Call (727) 733-4215.
Garden party: The grand opening of Dunedin Public Library's reading garden will be at 1 p.m. at 223 Douglas Ave. Includes refreshments. Call Liz White at (727) 298-3080, ext. 224.
Dinner theater: P.O.S.H. Library Theater Troupe presents Neil Simon's Plaza Suite at 6:30 p.m. today and Saturday at the Safety Harbor Resort and Spa's Baranoff Theater, 105 N Bayshore Drive. Tickets: $39.95 at the Safety Harbor Public Library, 101 Second St. Call (727) 724-1525, ext. 104.
Inventors signing: John R. Hobbs will sign copies of The Secrets of Successful Inventors from 1-4 p.m. at Oak Trail Books/Witch's Brew, 1219 Florida Ave., Palm Harbor. Call (727) 785-1960.
Retro picnic: The Dunedin Garden Club will host a 1929 picnic from 11 a.m.-3 p.m. at Edgewater Park, at Alt. U.S. 19 and Main Street, with barbershop singers, games, historic re-enactors, vintage autos, more. Bring a picnic or enjoy food from vendors. Free parking nearby. Call (727) 789-4880.
Dogs at the library: Browse animal rescue booths, dress your pooch for a costume contest and bring your adopted dogs for "The Other Dog Show" from 10 a.m.-4 p.m. at East Lake Community Library, 4125 East Lake Road. Call (727) 773-2665.
Bunco bash: The All Children's North Pinellas Hospital Guild invites the public to its fourth annual "Dress Up For Bunco" bash from noon-3 p.m. at Regency Oaks Life Care Community, 2720 Regency Oaks Blvd., Clearwater. $20 includes Bunco games and buffet lunch. To reserve: (727) 942-3028. Information: (727) 252-0540.
Arts and crafts fair: St. Ignatius Women's Council will present an arts and crafts fair from 9 a.m.-3 p.m. today and Sunday at St. Ignatius Hall, 712 Orange St., behind Kmart shopping center, Tarpon Springs. The sale features a table with homemade treats, knitted and crocheted items, art and hand-crafted jewelry. Call (727) 937-4280.
Halloween fun: The sixth annual Halloween carnival is from 6:30-9 p.m. at the Palm Harbor Community Center, 1500 16th St. Activities include trick or treating, crafts for all ages and a haunted hayride, trail and house. Refreshments available. Call (727) 771-6000.
Big birds for beginners: Attend a short lecture on bird watching and then practice your skills with the Clearwater Audubon Society. Meet at the Honeymoon Island Nature Center at 10 a.m. on Honeymoon Island, 1 Causeway Blvd., Dunedin. Take binoculars. Cost to enter the park is $4 for one person, $8 for a carload of two to eight. Call (727) 596-8822 or visit online at floridastateparks.org/honeymoonisland.
Concert pianist: Grigoris Zamparas will perform classical selections at 7:30 p.m. at the Tarpon Springs Performing Arts Center, 324 Pine St. Tickets $18, $16 members and students. Call (727) 942-5605.
Water-ski night show: The Tampa Bay Water Ski Show Team will present "Under the Haunted Big Top" at 7:30 p.m. today and Oct. 31 at Tower Lake, behind the Oldsmar Flea Market. Free. Concessions available. Call (727) 937-0569 or (813) 855-4678. Visit tampawaterski.com.
Book sale: Thousands of books, as well as CDs, DVDs and videos, will be for sale from 9 a.m.-3 p.m. at Unitarian Universalist Church of Clearwater, 2470 Nursery Road. Call (727) 531-7704.