Anybody who's ever ridden an ATV or UTV has likely pointed it in the direction of the nearest muddy section of trail early and often. While just about every modern four wheeler can handle itself well in a moderate amount of mud, some riders like to push the boundaries far past moderate.
The easiest way to improve the mud prowess of your ATV or UTV is with a set of mud-specific tires. With the right set of mud tires, you can get through just about anything Mother Nature throws your way, but don't go buying the biggest, nastiest tires you can find...