Many state parks in California have WiFi available. You just can't get away any more. Where will you be camping?
Patrick's Point State Park. Checked today and found I'll have cellphone signal. If it's not provided by another carrier I'll have Internet access too, WiFi or no.
Sadly, I shouldn't be going on any outings requiring extensive walking so I may be somewhat stuck in camp. [No A/C *\;-( ] Then again, I have a magazine article due a couple days after camp ends, plus a draft technical standard review due about the same time.