Camping at a state park can require a tough reservation — and extra fees. Are they legal?

Last fall, James Chowning set his sights on booking a campsite at San Onofre State Beach, one of the most visited state parks in California, renowned for its surf break and access to sandstone bluffs.

The campsite at the San Diego County beach would cost $45. But when the Northern California resident went to finalize his reservation, he says he was charged another $8.25 in fees at checkout.

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Chowning is now...