(KHNL) - At Kuhio Beach, you can see the water receding.
A beach boy warned people to get out of the ocean, including Michael Gough from Australia.
Gough explained, "The water was receding quickly this morning. I wasn't overly concerned but cautious enough to drag my kids out of the water."
Bill Ragragola got a warning, while out crabbing at Haleiwa Harbor.
"This cop came up, 'Hey Uncle Bill, there's going to be a tsunami, so get ready'," he said.
A few hours later, he noticed the surges.
Ragragola said, "First it started dropping, then it started rising up. I would say about 4 to 5 feet, yeah."
But Ragragola has seen worse.
"I seen the 1946 tidal wave. It was completely empty and Haleiwa Beach was dry. Just coming, the waves, the waves, the waves."
Nearby Brian Strong was working by the Haleiwa Bridge, when he noticed a change in the usually calm waters.
"It would start moving like a river in both ways, it would go out and back in. It was like 4 mini tsunamis," said Strong.
Fortunately the biggest wave generated on this day was just talk.