Clearwater Jazz Holiday: The Avett Brothers: The Avett Brothers, with their blend of folk, bluegrass and rock, lead the lineup. 1:30 p.m., Coachman Park, 301 Drew St., Clearwater. $16 per day, $45 reserved, $170 VIP. (727) 461-5200.
Yoga for the Turtles: Hit the beach for a one-hour, all levels yoga session followed by a Turtle Talk by Clearwater Marine Aquarium's supervisor of sea turtle nesting, Lindsey Flynn. Benefits Clearwater Marine Aquarium. 8:30 a.m., Archibald Park, 15100 Gulf Blvd., Madeira Beach. $10. (727) 401- 7380.
Pumpkin Festival: Something for everyone in the family at this fall themed festival with more than 75 craft booths, live country music, pumpkin games, a pioneer trades village and more. 9 a.m., Hunsader Farms, 5500 County Road 675, Bradenton. $10, 12 and younger free; parking $5. (941) 322-2168.
Corey Avenue Sunday Market on St. Pete Beach: Browse the weekly market with more than 60 local vendors offering farm fresh produce, specialty and ready-to-eat foods, plants, handcrafted items, live music, then stop in for breakfast or lunch at the nearby restaurants. 10 a.m., Along Corey Avenue, 155 Corey Ave., St. Pete Beach. Free admission. (813) 481-8805.
Hillsborough County Fair: The Hillsborough County Fair brings a harvest of midway rides. 10 a.m., Hillsborough County Fairgrounds, Corner of Sydney Washer Road and Hwy 60, Brandon. $7, $5 students, $4 seniors, 5 and younger free. (813) 737-3247.
Farm Fall Festival: An event celebrating the arrival of Fall with activities primarily for children including hayrides, pony rides, face painting, farm animal interaction, pumpkin patch, train rides, bonfire and live music. 11 a.m., Horse Power for Kids, 8005 Race Track Road, Tampa. $12, 1 and younger free. (813) 855-8992.
Upper Tampa Bay Chamber Oktoberfest: The large Oktoberfest celebration takes place under a giant Munich style tent. Noon, Tampa Bay Downs, 11225 Race Track Road, Tampa. $5, 12 and younger/verterans free. (813) 855-4233.
A Night at the Museum: Families may run into pirates, explorers, Florida pioneers and even the Storm Troopers from Star Wars as they trick-or-treat among the hands-on exhibits. There's also a kid's silent disco, costume contest, crafts and games. This year brings two sessions to choose from. 2 and 4:30 p.m., Tampa Bay History Center, 801 Old Water St., Tampa. $12, $10 children. (813) 228-0097.
St. Petersburg Opera Company: Faust: Under the direction of Mark Sforzini, the opera presents Gounod's story of an aging man who makes a deal with the Devil. 2 p.m., Palladium Theater, 253 Fifth Ave. N, St. Petersburg. $20-$75. (727) 823-2040.
Fantasy Hallow Haunt Tour: Haunted house experience offers tours every 15 minutes.6 p.m., Fantasy Escapes, 7136 State Road 54, New Port Richey. $5 per person, $10 per family. (727) 312-3280.
Hicks House of Horror: Like werewolf transformation, the caring medical center by day turns into a deranged hospital of horrors after the sun sets. Benefits Sun Coast Hospice. 6 p.m., West Coast Family Medical Care, 3165 McMullen-Booth Road, Clearwater. Donations appreciated. (727) 787-3911.
Florida Orchestra: Pops in the Park Concert: Music Director Michael Francis takes over the baton for the park concerts featuring music from Harry Potter, Star Wars, West Side Story and patriotic tunes. 7 p.m., River Tower Park, 401 E Bird St., Tampa. Free (food/drink additional). (727) 892-3337.
Sir Henry's Haunted Trail: Two dark, intense walking trails. 7:30 p.m., Sir Henry's Haunted Trail, 2837 S Frontage Road, Plant City. $12. (863) 944-0748.
Scream-A-Geddon: Brace yourself for this one. The interaction meter goes off the chart this year with an Infected Ground Zero making guests a part of the story and challenging them to stay alive. Other attractions include Deadwoods, Bedlam 3D, Cursed Hayride and Blackpool Prison. 7:30 p.m., Scream-A-Geddon, 27839 Saint Joe Road, Dade City. $19.95-$39.95. (813) 452-5412.
Ybor Ghost Tour: Hear the tales of ghosts that haunt Ybor and area clubs. Tour strictly draws from the drama of actual history. Not recommended for young children. 8 p.m., King Corona Cigars Cafe & Bar, 1523 E Seventh Ave., Tampa. $25, $10 ages 8-12. (813) 386-3905.
KIDS AND FAMILY
Comics Fest: Geek out at this comic book convention with artist meet and greets, video gaming, foam fighting lessons, board and card games, Pokemon Youth League and vendors. 11 a.m., Forbes Recreation Center, 6401 94th Ave. N, Pinellas Park. Free. (727) 369-5684.
MORE TO EXPLORE
Find corn mazes at tampabay.com/holiday.