Defending champion Park looked to be heading for another remarkable day.
She has been bogey-free at the event from the third round in 2014, through her victory last year and had a clean card yesterday until she bogeyed the par three 17th to halt her streak at 115 holes.
"It's actually nice to get it over with today and without playing with it for the next three days," Park said. "It was a good round. To make a bogey is disappointing, but it happens."
While Park said she felt rusty after her off-season break, she tied her low round of the year with 68.
The 19-year-old Lee said the wind rose gradually during her round and work she had begun to lower her ball flight helped in the conditions.
"I think I'm getting the hang of it. It's been better. We've been working on my putting a little bit more with my caddie and everyone. So it's getting more steadier."