A snowmobile is a motorized vehicle designed to travel on snow and ice, usually ridden on trails, frozen lakes, or open snowfields. It's used for recreation, work, or transport in snowy regions — and sometimes interacts with roads or traffic. Because it's not a regular road vehicle, there are special rules and safety laws for snowmobile use.
Watch out for snowmobiles. (Finland) © Wikimedia.org/Timo Newton-Syms, CC BY-SA