SAN FRANCISCO — John Suhrhoff found a Louis Vuitton bag on a Sausalito park bench during a lunch stop following a weekend hike.

Inside the bag, police say, was a treasure trove: a 12-carat diamond ring, pearl and emerald jewelry, a Cartier watch and roughly $500 in Canadian and American cash.

The contents were worth a cool $1 million US.

But the respiratory therapist didn't think of heading to a pawn shop — he returned the bag to Sausalito police headquarters Monday afternoon after failing to track down the owners.

The bag is en route to the Ghannadian family of Toronto, who were in Northern California for a daughter's wedding.

"Every person I know or associate with would have done the same thing," Suhrhoff, 56, of San Rafael, said Tuesday. "I'm glad to be able to help."

The Ghannadians told the Marin Independent Journal of Novato that their flight to Toronto was scheduled for Sunday evening, so they decided to visit Sausalito.

The town is known for its waterfront views of San Francisco and is a tourist hub.

Shahla Ghannadian briefly left her husband in charge of the purse, which contained jewelry she wore at the wedding, according to the paper.

Suhrhoff said he found the bag on a park bench near a tour bus depot.

Ghannadian started crying when she returned to her San Francisco hotel and realized the bag was gone, the paper said. The family went to Sausalito police headquarters and didn't have any luck — and were told chances were slim the bag would be returned.

But thanks to Suhrhoff, the bag and its contents are safe.

"You have to be a real man to return that bag," Ghannadian's son Ali told the Independent Journal. "Even the bag is expensive. We're really, really thankful to that guy."

The family did not return calls requesting comment Tuesday.

Sausalito police Sgt. Kurtis Skoog said it's rare to find someone so honest that they'd pass up a bag of expensive loot. Many others would have tried to pawn the contents off for a fraction of their value, he said.

Suhrhoff is happy the bag is headed back to Canada but couldn't help wondering why the family was taking such pricey items on day trips to begin with.

"It seems like a lot of expensive jewelry to be carrying around in a purse," he said.