ADMISSION: Rates vary depending on age or height of guest as well as the date and time of admission. Some parks are open for Halloween events only at night and require a separate ticket. Some are open on weekends only in October.
ATTRACTIONS: Some parks don't operate all of their roller coasters, shows and other rides during Halloween events. Check with individual parks before your trip.
ATTIRE: Most parks don't let guests wear costumes, though a few do have costume contests and trick-or-treating for the little ones. Again, check ahead.
AMUSEMENT PARKS NATIONWIDE: To find an amusement park and parks with Halloween events in your area, the International Association of Amusement Parks and Attractions has a clickable map and other information at www.ticketforfun.com
CEDAR POINT: Sandusky, Ohio; www.cedarpoint.com/ or 419-627-2350.
KNOTT'S BERRY FARM: Buena Park, Calif.; www.halloweenhaunt.com/ or 714-220-5000.
LAKE COMPOUNCE: Bristol, Conn.; www.lakecompounce.com or 860-583-3300.
UNIVERSAL STUDIOS: Orlando; themeparks.universalstudios.com/orlando/hhn or 407-363-8000.