Party on the aircraft carrier Intrepid.
Midnight run in Central Park.
Five-kilometer run with masquerade parade, live music, champagne station. The Web site allows you to check hotel availability and book rooms 24 hours a day. Every casino has something going on, from Streisand at the MGM Grand to Kenny Kerr and the Sunspots at Jackie Gaughan's Plaza. Goings-on in Fiji range from the refreshing to the slightly crass. On the one hand, you have the midnight surf, the midnight scuba dive and the Masomo Lake fishdrive, in which swimmers stir fish to be caught at the surface.