ALGONQUIN FOUNDERS’ DAYS, July 27-30, Spella Park, 2550 Harnish Drive, Algonquin. Features carnival, Cardboard Boat Regatta, Taste of Founders’, Social Garden, live bands, a petting zoo, walks and runs and fireworks. Information: 847-658-5340 or www.algonquinfoundersdays.com.
AMERICA'S CARDBOARD CUP REGATTA, 9 a.m. to 3 p.m. July 28, Crystal Lake's Main Beach, 300 Lakeshore Drive, Crystal Lake. Considered the championship of cardboard boat racing with entrants building and racing boats along a 200-yard course for a variety of awards. In the event of inclement weather or poor water conditions, the reschedule date is July 29. Admission: $3. Information: 815-459-0680 or http://www.crystallakeparks.org.
CHRISTMAS IN JULY 5K RUN/1K WALK, 8 to 10 a.m. July 29, Woodstock Square Historic District, 101 N. Johnson St., Woodstock. A family-friendly fun run through the downtown Woodstock Square Historic District and quaint Victorian neighborhoods. Hosted by the Rotary Club of Woodstock to benefit the Woodstock Christmas Clearing House. Entry fee: $35 adults, $25 ages 17 and younger, $15 Kids 1K run/walk. Information: 815-575-9678 or https://runsignup.com/Race/IL/Woodstock/ChristmasinJuly5KWoodstock.
"MUCH ADO ABOUT NOTHIN' THE MUSICAL," July 27-29, Huntley School District 158 Performing Arts Center, 13719 Harmony Road, Huntley. Presented by Burkhalter Productions, in cooperation with Huntley Community School District 158, featuring a cast of fifth- through tenth-grade students acting, singing and dancing their way through the modern musical version of Shakespeare's classic play. Schedule: 7 p.m. July 27-28; 2 and 7 p.m. July 29. Tickets: $5 general seating at the door, free for children younger than 3. Information: Lorie Woods, 847-659-6107 or email@example.com.
5K COLOR RUN, 8 a.m. July 28, Lions Park, 1200 Silver Lake Road, Cary. Runners and walkers of all ages are welcome to attend the celebration hosted by the Cary Park District. Featuring the color run, DJ, snacks and fun. Race starts at 9 a.m. Rain date is Aug. 4. Donate a nonperishable item to the Cary-Grove Food Pantry and be entered into a raffle to win a massage at Dolce Day Spa or $100 gift card to The Running Depot. Entry fee: $30. Information: 847-639-6100 or www.carypark.com.