Things To Do
If you plan on staying Friday there are a ton of things to do on Long Island, which I describe below.
You can also take the train and explore NYC!
If you rented a car or drove:
Go to the Northfork wineries and breweries, explore Montauk, go to any of the beautiful South Shore beaches (Long Beach is one of them), take a ferry to Fire Island for the day, go out on a fishing charter from Captree Island, go Kayaking or Paddleboarding