1 Author Kate DiCamillo: Bestselling author Kate DiCamillo will discuss her new book for young readers Raymie Nightingale at the Robert W. Saunders Sr. Public Library from 6-7 p.m. Friday. The book will be available for purchase and signing after the discussion. DiCamillo has won two Newbery Medals recognizing her novels The Tale of Despereaux (2003) and Flora and Ulysses (2013). Her best-known books for young children are the Mercy Watson series. The talk is free. 1505 Nebraska Ave., Tampa. (813) 273-3652. For more with Kate DiCamillo, see tbtim.es/12tk.
2 Zephyrhills Summerfest: The pet-friendly festival from 4-9 p.m. Saturday features more than 2,000 square feet of children's activities with bounce houses, a rock climbing wall and trampolines as well as live music, a light show, watermelon and hot dog eating contests, game challenges and fireworks. Free. Zephyr Park, 38116 Fifth Ave., Zephyrhills. (727) 674-1464.
3 Harry Potter Countdown Party: Before the script book of the play Harry Potter and the Cursed Child comes out, Barnes & Noble Clearwater will host trivia, coloring, giveaways, the assembly of a 3D Hogwarts Astronomy Tower and themed treats starting at 7 p.m. Friday. It's all part of the monthlong celebration in anticipation of the July 31 release of the script book. Free. 23654 U.S. 19 N, Clearwater. (727) 669-1688.
4 Downtown Tampa's Fourth Friday: Get free Pirate Water Taxi rides (a great way to skip traffic) along Tampa's Riverwalk from 4-10 p.m. Friday when museums, restaurants and performing arts venues offer extended hours with free, special or added value admission deals or special programming. Maps and free wristbands can be obtained at AIA Tampa Bay, Florida Aquarium, Glazer Children's Museum and other locations. Free. fourthfridaytampa.com.
5 Dog Swim Day: Release the hounds! Dogs get a day of leash-free splashing and swimming in the Lake Vista Pool from 4:30-6 p.m. Saturday. Sorry, no swimming for humans. It's $5 for the dog, humans free. Register at start time with proof of dog's current vaccination. Donations of clean towels, Nylabones, bleach, dish soap, blankets, trash bags and newspapers are appreciated. 1450 60th Ave. S, St. Petersburg. (727) 893-7732.