Saturday, Oct. 27, 7 p.m.–midnight
Fume Blanc Commodore (Pier 40, 8 Embarcadero)
Enjoy a three-hour bay cruise with an open bar, D.J.s in two dance areas, and more. Costumes and masks required. Ages 21 & up. $115 (packages available), 415-573-0740, sfhalloween.com
