use website
Go on Huntington beach wedsite. Click on reservation. You can find out if they have any openings and the rates. You can give them a call too. The rates vary. Some days are cheaper than others
Best bet is to call direct. Turnover is high. I believe 30amp is available in the north camping area. But do ask directly.
Go to their website. It has availability maps and rates. But it's unlikely you'll be able to get a long stay spot without a couple of months pre-booking.
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