Halloween 2024 Long Island Free Events. The long island aquarium in riverhead will host its annual “bats, barnacles & broomsticks” halloween celebration on oct. Also check the calendar and know events running in exhibition, nightlife, music & concerts, in longisland.com.

The scare is back along with brand new attractions at spooky fest 2024 presented by the center for science. We’ve rounded up the best halloween events for kids on long island in 2024 to keep everyone entertained with thrills and chills.