SALES TAX DECISION: 5:15 p.m., 75 Calhoun St. The Charleston County School Board will decide on the length of the proposed sales tax it will ask voters to approve in November. The board already gave the go-ahead to put an eight-year increase on the ballot, but the board might consider scaling their request back to a six-year tax. The money will pay for construction projects.
FREE FISHING SEMINAR: 6:30 p.m. The Charleston Angler, 1113 Market Centre Blvd., Mount Pleasant. The Charleston Angler will present a free seminar titled "Tarpon With Captain John Irwin." 885-2095 or www.thecharlestonangler.com.
'SPLASH DAY': 10 a.m.-2 p.m. Mount Pleasant Waterfront Memorial Park, 99 Hallman Blvd. Free. Kids can stay cool and have fun on two inflatable water slides and a Slip 'n Slide. 884-8517 or www.townofmountpleasant.com.
FREE HEALTH TALK: 6-7 p.m. Whole Foods Market, 923 Houston Northcutt Blvd., Mount Pleasant. Dr. Patrick Lovegrove will talk about building new tissue in the body with a regeneration injection. www.lovegrovehealthsolutions.com.
MEN'S BREAKFAST CLUB: 8:30-9:30 a.m. Lowcountry Senior Center, 865 Riverland Drive. Free to members, $7 nonmembers. Will Freeman, general manager of Stono Ferry Links, will talk about course etiquette, golf tips and rules. 762-9555.
BROWN BAG LUNCH SERIES: Noon. Center for Women, 129 Cannon St. Free. Barbara Currey will explore the emotional legacies between mothers and daughters. 763-7333 or www.c4women.org.
MUSIC ON THE GREEN: 6-9 p.m. Freshfields Village Green at the crossroads of Kiawah and Seabrook islands. Free. Bring a blanket or lawn chair and enjoy singer-songwriter Travis Allison. www.freshfieldsvillage.com.
MOONLIGHT MIXER: 7-11 p.m. Folly Beach Fishing Pier, 101 E. Arctic Ave. $8 Charleston County residents, $10 nonresidents and at door. Enjoy dancing to music by DJ Jim Bowers. 795-4FUN or www.ccprc.com.
FREE SKIN SCREENINGS: 9 a.m.-1 p.m. Splash Zone Waterpark at James Island County Park, 871 Riverland Drive. MUSC will offer free skin cancer screenings. 792-0878 or 795-4FUN.
JUNIOR REGATTA: 9 a.m. registration; 11 a.m. skipper's meeting; 12:30 p.m. race. Hobcaw Yacht Club, 180 Hobcaw Drive, Mount Pleasant. $15-$20 registration. Open to participants 18 and under. The 6th Annual Mount Pleasant Junior Regatta will give young sailors a chance to showcase their racing skills in a fun environment. Participants do not need to own a boat and should contact Tina Carter at 849-2061 to arrange use of a boat. www.townofmountpleasant.com.
FREE FAMILY MOVIE: 9 p.m. Mount Pleasant Memorial Waterfront Park, 99 Hallman Blvd. Free. This month's featured movie is "City Slickers." Food and beverages will be sold. 794-4FUN or www.ccprc.com.
FIRST DAY FESTIVAL: 1-4 p.m. Liberty Square, 360 Concord St. Free. Celebrate the start of the new school year at the eighth annual First Day Festival, which will feature games, free school supplies, boat rides, entertainment, activities, food and more.
BACK-TO-SCHOOL BASH: 5-7 p.m. Felix Pinckney Community Center, 4800 Park Circle, North Charleston. The North Charleston Mission Initiative will hand out school supplies and will provide refreshments, music, entertainment and more. 745-1028.