40th Annual Waterway Cleanup: 9 a.m. to 1 p.m. at over 30 locations throughout Broward. 954.524.2733; www.waterwaycleanup.org.

About Boating Safely: 8 a.m. to 4 p.m. course sponsored by the U.S. Coast Guard Auxiliary at Dixon Ahl Recreation Center, 2200 NE 38th St., Pompano Beach. Cost: $50, includes materials and lunch. 731-907-0307; http://wow.uscgaux.info/pe_class_flyer.php?unit=NAT&course=18918.

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 lunch. Cost: $35 adults, $20 teens. 561-391-3600; http://wow.uscgaux.info/pe_class_flyer.php?unit=NAT&course=18516.