Tow Dolly Question

Thinking of renting a dolly from U-Haul to tow a car from Maine to Florida this fall. We've never towed before, so pardon us if this is a really stupid question. But--once you get the car off the dolly at a campground, how do you maneuver the dolly to the spot where you're going to store it? Is a dolly light enough to move around by hand?