Open Streets St. Pete: Modeled after "ciclovia" (Spanish for bike path) events around the world, Open Streets shuts down parts of the city to cars for an afternoon. That means for four hours on Sunday, the streets between Mirror Lake Park and Williams Park in St. Petersburg will be closed to cars to allow the public to freely bike, stroll or roll skateboards. Over in Williams Park, an Indie FamFest will be set up, a free family festival with pet blessings, pet costume contest, photo booth, food truck rally, vendors, live music, hoop and dance performances, cultural activities and bike valet parking. The FamFest opens at noon and streets close at 1 p.m.
Young Eagles Flight Rally: Kids ages 8 to 17 can take flight and explore the world of aviation for free. Volunteer pilots will take them on a 15-minute flight to see how airplanes work 8 a.m.-noon Saturday. Weather will be monitored; check eaa282.org for possible cancellation. Get there early because lines get long. Clearwater Airpark, 1000 N Hercules Ave. (813) 765-2204.
Family Nerf Night: Foam will fly on Friday when a giant Nerf battle commences at the Safety Harbor Community Center, 650 Ninth Ave. S. Parents and kids ages 5 and up take part in contests, obstacles, Nerf dodgeball and more from 6 to 8 p.m. $5 per person, and you must provide your own Nerf blasters and label your Nerf darts (good luck with that). You can register the night of the event at the community center or online at safetyharborrecreation.com. (727) 724-1530.
Fall Plant Festival: USF's Botanical Gardens celebrate 26 years of throwing the area's largest fall plant sale this weekend. With more than 40 vendors, local plant clubs and growers offer crotons, African violets, orchids, bromeliads, begonias, cactus and succulents, among the plants, plus supplies for sale from 10 a.m. to 4 p.m. Saturday and 10 a.m. to 3 p.m. Sunday. There's a scarecrow display among the gardens, kids' activity area and workshops aplenty. $5, free for members and kids under 12. University of South Florida Botanical Gardens, 12210 USF Pine Drive, Tampa. (813) 974-2329.
Cotee River Bike Fest: The annual three-day motorcycle extravaganza in downtown New Port Richey will feature a bikini contest, bike show, stunt show, ACW wrestling cage match, and music by Venom, Bearded Brothers, 1984 (Van Halen tribute band), Edge of Red and Pitbull Toddler. Downtown will be open to bikes only (no other vehicles allowed). Free. 5 to 11 p.m. Friday, 9 a.m. to 11 p.m. Saturday and 9 a.m. to 5 p.m. Sunday at Sims Park, 5547 Main St., New Port Richey.