11 am – 6 pm 2025 Seafood Festival Ages: AllFestivals Food & Drink Long Island Maritime MuseumWest Sayville
Noon – 9 pm Island Park Greek Festival Ages: AllAttractions Festivals Panaghia of Island ParkIsland Park
Noon – 9 pm Port Jefferson Greek Festival Ages: AllAttractions Festivals Greek Orthodox Church of the AssumptionPort Jefferson
2 – 9 pm 30th Annual Holbrook Chamber Carnival & Festival Ages: AllAttractions Festivals Holbrook Country ClubHolbrook