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 cost. 305-428-2453; http://wow.uscgaux.info/pe_class_flyer.php?unit=NAT&course=19630.

Hillsboro Inlet Lighthouse Tour: 9 a.m. to 3 p.m. boat departures from Sands Harbor Marina, 125 N. Riverside Drive, Pompano Beach. Cost: $25 annual membership. 954-942-2102; www.hillsborolighthouse.org.

Smoke on the Water BBQ Feast: 11 a.m. to 6 p.m. at Esplanade Park, 400 SW Second St., Fort Lauderdale. Free entrance, food items start at $5. www.goriverwalk.com.