PORTER, Ind. (WWJ) - Authorities are searching the Lake Michigan shoreline for a Metro Detroit-native man who vanished during a kayaking trip last weekend.

Jacob Sandy (Handout)

According to South Bend Indiana police , 23-year-old Jacob Sandy was last seen at around 10 a.m. Saturday, as he was headed out to to kayak on Lake Michigan. He did not return home.

While his exact destination was unknown, police in Porter, Indiana told The Northwest Indiana Times that Sandy's Light Blue PT Cruiser, which has a Michigan license plate, was later found in a parking lot near Porter Beach.

Upon further investigation, surveillance video from a camera outside the bathrooms at Indiana Dune's Porter Beach, just west of Michigan City, showed Sandy walking in front of a Porter police cruiser Saturday afternoon; and that car's dashboard camera showed him taking his kayak into the water.

His brother Paul Sandy said Jacob is from Birmingham, Michigan, and had been living in Indiana for about eight months before his disappearance.

"He graduated from Hope College last year," Paul Sandy told WWJ's Michael Cohen. "And he moved out to South Bend to work as an auditor for a big accounting firm."

"He had just bought this pretty expensive, like nice kayak and he wanted to try it out," he said.

Investigators have not been able to find the kayak, nor any other items belonging to missing man.

"The kayak was a very nice kayak that was meant to stay at the surface," Paul Sandy said. "They were very surprised to not find that."

The Indiana Department of Natural Resources and the U.S. Coast Guard are continuing to search, as authorities say they are treating this as a missing persons case.

Jacob Sandy is described as 5'11'' tall and around 150 lbs, with brown hair and blue eyes.

Anyone who has seen him, or who has any information that could help authorities find him is asked to call 574-235-9201