"I like seeing all the cars and trucks and seeing all the bands," a parade-goer said.
In Oyster Bay, residents enjoyed sights repeated in communities across Long Island: small villages, with close family ties.
"They grew up here and they live all over the country now and they come back every year," a resident said.
In Port Jefferson, the parade has been happening every year for decades.
Eyewitness News found generations of locals who were carrying the tradition on.
"My grandfather marched in the parade," said Barbara Sclafani, a Port Jefferson resident.
Sclafani remembers watching the Port Jefferson parade with her grandfather.
Now, she enjoys the company of her grandson Dave, and great-grandson Joel.
"It's a lot of fun coming down from when I was a kid and taking my son now, I think this is his second time, hopefully remember it and he'll want to come down as he gets over, and keep it going," said Dave Kestner, a Long Island resident.