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ANAHEIM, Calif. (AP) -- Two high-profile restaurants are closing their doors at Disney's California Adventure after failing to pack in big enough crowds at the struggling theme park.

Disney spokesman Ray Gomez said Avalon Cove, a seafood restaurant owned by Wolfgang Puck Food Co., closed Monday. It was the first defection of a tenant since the theme park opened in February.

Robert Mondavi Corp. also said it will no longer operate its Golden Vine Winery and restaurant but will remain a park sponsor. Disney will now take over control of the Mondavi attraction.

"We want to eliminate further financial exposure," said Nancy Light, a spokeswoman for the Oakville, Calif-based winery. The company will record a charge of more than $12 million related to its investment in California Adventure.

A Wolfgang Puck spokesman declined to comment about the restaurant closure.

The departures raise more concerns about lagging attendance and future prospects at the $1.4 billion resort that features a theme park, hotel and Downtown Disney development.