6 – 7 pm Adelphi Breast Cancer Program 30/30 Exercise Class Caribbean Classes Adelphi UniversityGarden City
7 – 8 pm Apollo-Soyuz: The Mission & The Astronauts (A Free, Virtual Lecture) Ages: 9 and upCaribbean Community Family Hamptons Observatory with Suffolk County Community College (online)East Hampton
11 am – 4 pm Untitled – Local Artist Show Water Mill Museum Art Community The Water Mill MuseumWater Mill
Noon – 5 pm INDEPENDENCY: THE AMERICAN FLAG AT 250 YEARS Art Community Southampton Arts CenterSouthampton
1 – 4 pm The Gallery at Brecknock Hall: Art Show & Fundraising Sale Art Caribbean Brecknock HallGreenport
6 – 7 pm Club 8: Ridiculously Fun Social Skills Group for Teens Ages: 13 and upCommunity Family Club 8Plainview
10 am – noon AMSEAS Beach Walk & Cleanup at Hallock State Park Animals Community Hallock State Park PreserveRiverhead
10 am – 5 pm HAMPTON VINTAGE – A Luxury Marketplace Community Free Mattituck Historical SocietyMattituck
10 am – 1 pm Historic Crafts: Paper Quilling & Blacksmithing Ages: AllAttractions Classes Family The Greater Westhamtpon Historical MuseumWesthampton Beach
11 am – 4 pm Untitled – Local Artist Show Water Mill Museum Art Community The Water Mill MuseumWater Mill
Noon – 5 pm INDEPENDENCY: THE AMERICAN FLAG AT 250 YEARS Art Community Southampton Arts CenterSouthampton
1 – 7 pm Lenny Bruno Farms’ Sweet SummerFest Ages: AllAnimals Community Family Lenny Bruno FarmsManorville
1 – 4 pm The Gallery at Brecknock Hall: Art Show & Fundraising Sale Art Caribbean Brecknock HallGreenport
6 – 9 pm Folly Tree Arboretum “Rot Rave” fundraiser Art Community Folly Tree ArboretumEast Hampton, New York
10 am – 5 pm Sea Glass Festival Ages: 3 and upArt Attractions Family The Whaling Museum & Education CenterCold Spring Harbor
Tomorrow, midnight Royal Botania, Thayers, and The Roundtree, Amagansett Launch a Summer Design Pop-Up The Roundtree, Amagansett