The San Diego boat owner got quite a surprise when he woke up and found a baby sea lion sleeping on his vessel.

Michael Duffy said that we woke up by the sound of snoring, but he didn?t see anything and went back to sleep.

Four hours later he heard a sneeze, when he went to take a look he was shocked, a baby sea lion was sleeping on a bunk on his boat!

"Right there, curled up, just like a dog, on one of my bunks was a tiny, little baby sea lion," Duffy said.

"He followed my directions like it was a dog," Duffy said. "Then every once in a while, he looks back and he didn't look like he wanted to leave."

Check out the experience on this video: