About Boating Safely: 8:30 a.m. to 5 p.m. course sponsored by the U.S. Coast Guard Auxiliary at Imperial Point Medical Center, 6401 N. Federal Highway, Fort Lauderdale. Cost: $50. 954-941-5781 or 561-350- 3395; flotilla34pompanobeach@gmail.com

GPS for Mariners: 9:30 a.m. to 12:30 p.m., sponsored by the U.S. Coast Guard Auxiliary at Monica Burguera Foundation, 3750 W. Flagler St., Miami. No charge. 305-428-2453; fsope@flotilla67.org.

Flea Market & Festival: 8:30 a.m. to 1:30 p.m. at St. Paul’s Church, 188 S. Swinton Ave., Delray Beach. Free admission. 561-276-4541; www.stpaulsdelray.org..561-276-4541