11 am – 4 pm Jaws-Some Scavenger Hunt Ages: 5 – 12Attractions The Whaling Museum & Education CenterCold Spring Harbor
5 – 11 pm Island Park Greek Festival Ages: AllAttractions Festivals Panaghia of Island ParkIsland Park
5 – 11 pm Port Jefferson Greek Festival Ages: AllAttractions Festivals Greek Orthodox Church of the AssumptionPort Jefferson
6 – 7 pm Club 8: Ridiculously Fun Social Skills Group for Teens Ages: 13 and upCommunity Club 8Plainview
6 – 11 pm 30th Annual Holbrook Chamber Carnival & Festival Ages: AllAttractions Festivals Holbrook Country ClubHolbrook
7 – 10 pm Papa San’s International World Tour! Ages: AllCaribbean Community Rehoboth Open Bible ChurchBrooklyn
All day Walt Whitman Birthplace Museum – Girl Scout Programs! Ages: 5 – 12Art Classes Walt Whitman BirthplaceHuntington Station
8 am – 5 pm Long Island Celtic Festival and Highland Games Ages: AllFestivals History & Culture Old Westbury GardensOld Westbury
9:30 am Arthur Ashe Kids’ Day powered by Net Generation Ages: AllFree Sports USTA Billie Jean King National Tennis CenterFlushing
9:30 am – 1:30 pm Long Island Nets Summer Fest Ages: AllFestivals Free Jones Beach (Field 4) – Basketball CourtsWantagh
9:30 am – 8 pm Summer Festival Ages: 8 and underFree Open Houses NY Kids Club Park Slope-GowanusBrooklyn
Tomorrow, 10 am Radiolab Presents: Terrestrials Live! Wilderness Wonderland at Little Island Little Island
Gay City News “Who Killed Teddy Bear,” dramatic thriller starring out actor Sal Mineo, screening at Film Forum