Saturday, Oct. 28, 7 p.m.–midnight
Fume Blanc Commodore (Pier 40, 8 Embarcadero)
Enjoy a three-hour bay cruise with an open bar, two D.J.s in two dance areas, and more. Costumes and masks required. Ages 21+. $109, packages available, 415-573-0740, sfhalloween.com
