Visitors to Hearst Castle in San Simeon, California, who need a bathroom have to use portable toilets. Washing up is done with hand dispensers.
Those who throw up tents at the nearby state-operated campground have to forego the outdoor shower stalls. The water is turned off.
It's like that for most of the other 279 state parks as water conservation methods during California's extreme drought mean some of the usual niceties for tourists are in short supply.
"We have closed washrooms and installed chemical portable toilets as part of the mandate to cut back on water," said Vicky Waters, deputy director of public affairs at the Department of California State Parks.
"We've had some complaints about it but most people understand because of the drought why we're doing this," she added.
The cutback on bathrooms in parks and showers in campgrounds started in June, said Waters. She added that there's no way to know when the situation will return to normal.
Jennifer Smith and her husband Harvey operate Harvey's Honey Huts in Cambria, California, and have been supplying the portable facilities to the Hearst Castle park.
"We've also been providing portable toilets in the business area around here since February," said Jennifer Smith on a phone call to CNBC from Arizona where she and her husband were vacationing.
"We've been busy. This is the first time we've felt like we could take a break," she said.