Officers said they wanted to check every one on the lakes.
"You can get killed or kill someone else just as fast on a boat as you can on the road," NC Wildlife Resources Commission Officer Jon Morgan said.
That's why Morgan and other officers with the state Wildlife Resources Commission patrolled lakes and looked out for drunken boaters on Saturday and Sunday.
"They may be driving erratically," he said. "They may be going too fast, they may go through a no wait zone too fast, maybe cutting close to other boats."
He said people may not know that drinking, driving and water are a very dangerous mix.
"You're in a moving vessel so motion is going to even increase that impairment," Morgan said.
Authorities said they were also doing safety checks, make sure boaters have life jackets and fire extinguishers onboard.