7 a.m. Registration will open for about 700 ground zero recovery workers participating in a charity motorcycle ride for 9/11 families. At 9:30 a.m, the riders will departure for Pomona, in Rockland County, following a "blessing of the bikes" at Church and Vesey streets.
9 a.m. The Walk for a Healthy Bronx will start at the Lincoln Hospital rotunda, 234 East 149th Street.
10 a.m. The grand opening of the Kitty Cat Habitat, for cats in need of homes or foster parents, will take place at Bide-a-Wee, 410 East 38th Street.
10 a.m. The 29th Annual Thunderbird American Indian Mid-Summer Pow Wow will take place at 73-50 Little Neck Parkway in Queens.
10 a.m. The Children’s Aid Society will host a festival on Bleecker Street between Broadway and 6th Avenue.
4:30 p.m. Council members Robert Jackson and Miguel Martinez will announce a new aid program to help children in the Dominican Republic suffering from massive lead pollution at the Staples at 4320 Broadway between 184 and 185 streets.
11 a.m. The Children’s Leukemia Research Association Festival will take place on 52nd Street between Lexington and 7th avenues.
Noon. Cindy Sheehan, the American anti-war activist whose son was killed in the Iraq war, will host a Gathering of Hearts Festival at Central Park East Meadow, featuring a picnic, music, "Eyes Wide Open" memorial exhibit, speakers also from Granny Peace Brigade, and more.
2 p.m. The Latino Cultural Festival will take place in Queens Theatre in the Park in Queens.