An amphibious all-terrain vehicle, or amphibious ATV (or AATV), is a small, all-wheel drive, all-terrain amphibious vehicle, used for recreation, farm-, hunting, utility or industry tasks, by enthusiasts and professionals worldwide. They are legally off-highway vehicles in many countries, or at least restricted from use on express highways and motorways – their use is generally extra-urban.
Amphibious ATVs frequently use a lightweight body-tub with wide balloon tires and a simple drivetrain without any wheel suspension or steering – the only cushioning is provided by the soft tires, that also contribute to floatation in the water. Steering is through differential steering, also known as skid-steering. Models are frequently six-wheel drive, or eight-wheel drive on larger models.
