How much does it cost to camp for 30 days

Powered sites are $30.00. Sites without power are $20.00 per night.

I agree. There's a limit of how long you can stay there. And no reservations allowed either. And as for the price, it seemed like it was around $20 a night last time we camped there.

You can only stay for 14 days at a time, that's pretty standard for all of California. I believe they charge 18 dollars a day but not positive.