A couple of friends with a small family business—two parents and two teens—moved from a traditional dome to an air tent because pitching near the caravan and handling the day’s catches didn’t require battling poles in gusts. The extension tent is, conversely, a lighter, more adaptable partner to your caravan. It’s usually a separate tent or a very large, drive-away extension designed to be attached to the caravan, often along the same rail system that supports awnings. ...