Park Slope Parents posted some great holiday activities to know about for Sunday, December 23, 2007:

Prospect Park. Ice Skating at Wollman Rink

Grand Central Holiday Train Show

The Station At Citigroup Center

Christmas Trees For Sale By Local Boy Scouts in JJ Byrne Park

Prospect Park – Lefferts Historic House Quilt Exhibit & Workshops
&
More!

The Red Balloon & White Main At BAM: 1 p.m. daily.

Prospect Park Audubon Center – Discover Tours