ROMA, Tex. — A cold wind whipped down the Texas plains on the night last month that Sharon Smith, 68, and her husband, Bill, 73, arrived here to be work-campers.

In the dark, they had trouble setting up their camper. But Ms. Smith, a former teacher’s aide from Sioux Falls, S.D., said she looked up at the starry sky, shook off a few of the burrs she had picked up lying on the ground working on their truck, and told herself it would get better.

It did.

The life of a work-camper, volunteering in places like Falcon State Park in deep South Texas in return for free rent, is not without its bumps. But as Ms. Smith also quickly discovered, the rewards can be deep as well — like making cinnamon rolls as part of her job at the camp recreation center, where she and Mr. Smith are working as hosts through the end of March.

“We’re here for three reasons,” she said, as she spread sugar on the dough. “No. 1, we like to travel. No. 2, we like people. And No. 3, we’re on a budget.”