A San Diego boat owner got quite a surprise when he woke up to find an unlikely guest sleeping on his vessel.

Michael Duffy says he was roused by the sound of snoring at about 2:30 a.m. on his 40-foot boat, which was docked at the San Diego Yacht Club. Not seeing anything, he went back to sleep.

About four hours later, Duffy woke up again, this time to a sneeze and more snoring. Investigating a second time, he was shocked to find a baby sea lion catching some z's 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.

Recording the incident on his cell phone, Duffy woke the adorable pup and shooed him off of the boat.

"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."

The sea lion, who Duffy dubbed Gilligan, jumped into the water and safely swam away.

Watch more above and see Duffy's video below.

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