Boating Safely: 9 a.m. to 5 p.m. course sponsored by the U.S. Coast Guard Auxiliary at Spanish River Park, 3939 N. Ocean Blvd., Boca Raton. Bring your own lunch. Cost: $35 adults, $20 teens. 561-391-3600; http://wow.uscgaux.info/pe_class_flyer.php?unit=NAT&course=18516.

Cool Saturdays at Bonnet House: 9 a.m. to 4 p.m. fun marine activi- ties at 901 Birch Road, Fort Lauderdale. Cost: $10 adults, free children 12 and under. 954-563-5393; bonnethouse.org.