LAKE NORMAN, N.C. -- Ron Robertson and Hannah Shively know their work is cut out for them.
"It can be a little nerve wracking. Lake Norman is one of the biggest manmade lakes in North Carolina,” said Hannah Shively, a North Carolina Wildlife Law Enforcement officer.
From now through summer they are charged with keeping you safe on the lake.
"We're just going to do our regular safety inspection and make sure you got everything,” said Shively to a boater who was on Lake Norman.
NBC Charlotte asked Shively and Robertson the top three problems they see most often on the lake.
"Drinking on the lake; it's the number one problem out here,” Shively stated.
Robertson agrees. He says he’s seen too many fatalities that start with drinking, often before the boaters are even in the water.
"Then when they get on the lake there are external factors like waves, sun beaming down on you. There's a lot more to keep up with than on the road,” said Robertson.
Robertson says boaters who create dangerous wakes are another problem.
And those who are distracted by their own children or by watching a skier also run into trouble.
His recommendation: don’t consume alcohol at all on a boat, and have several spotters, riders who are committed to paying attention and helping the driver spot any problems.