5 – 10 pm Herricks Community Fund Carnival Ages: AllAttractions Family Festivals Herricks Community CenterNew Hyde Park
6 – 10 pm The Cathedral of Saint Paul Greek Festival Ages: AllFamily Festivals Food & Drink The Cathedral of Saint PaulHempstead
9 am – 5 pm Long Island Orchid Festival Art Expo Planting Fields Arboretum State Historic ParkOyster Bay
5 – 11:59 pm Trek Long Island Ages: AllFamily Festivals Fundraisers Hyatt Regency Long IslandHauppauge
5 – 11 pm Herricks Community Fund Carnival Ages: AllAttractions Family Festivals Herricks Community CenterNew Hyde Park
6 – 11 pm The Cathedral of Saint Paul Greek Festival Ages: AllFamily Festivals Food & Drink The Cathedral of Saint PaulHempstead
9 am – 5 pm Long Island Orchid Festival Art Expo Planting Fields Arboretum State Historic ParkOyster Bay
10 am – 6 pm Trek Long Island Ages: AllFamily Festivals Fundraisers Hyatt Regency Long IslandHauppauge
10 am – 5 pm North Meets South Fair Ages: AllAnimals Community Family Suffolk County Farm and Education CenterYaphank
10 am – 5 pm The 8th Annual Wantagh Spring Festival Ages: AllFamily Festivals Free Wantagh Train StationWantagh
10:30 am – 4:30 pm Farmingdale Fire Dept. Spring Fair Along Ages: AllFamily Festivals Main Street FarnmingdaleFarmingdale
11 am Farmingdale Medieval History Day Ages: AllFamily Festivals Village Green- FarmingdaleFarmingdale
Noon – 11 pm Herricks Community Fund Carnival Ages: AllAttractions Family Festivals Herricks Community CenterNew Hyde Park
Noon – 11 pm South Shore Mall Carnival Ages: AllAttractions Family Festivals South Shore MallBay Shore
2 – 11 pm The Cathedral of Saint Paul Greek Festival Ages: AllFamily Festivals Food & Drink The Cathedral of Saint PaulHempstead
9 am – 5 pm Long Island Orchid Festival Art Expo Planting Fields Arboretum State Historic ParkOyster Bay
10 am – 5 pm Trek Long Island Ages: AllFamily Festivals Fundraisers Hyatt Regency Long IslandHauppauge
10 am – 5 pm HarborFest Dock Day and Craft Fair Ages: AllFamily Festivals Free Town DockPORT WASHINGTON
10 am – 5 pm HarborFest Dock Day and Craft Fair Ages: AllFamily Festivals Town Dock and Lower Main StreetPort Washington
Noon – 9 pm The Cathedral of Saint Paul Greek Festival Ages: AllFamily Festivals Food & Drink The Cathedral of Saint PaulHempstead
Noon – 9 pm Herricks Community Fund Carnival Ages: AllAttractions Family Festivals Herricks Community CenterNew Hyde Park
Noon – 10 pm South Shore Mall Carnival Ages: AllAttractions Family Festivals South Shore MallBay Shore
12:30 – 5 pm Pony Festival at Pindar Vineyards Ages: AllAnimals Environment Family Pindar VineyardPeconic, NY 11958