Ice shanty
An ice shanty is a portable or permanent structure on a sled placed on a frozen lake to provide shelter during ice fishing. They can be as small and cheap as a plastic tarpaulin draped over a simple wooden frame, or as expensive as a small cabin with heating, bunks, electricity, running water, and cooking facilities.
More durable ice houses are generally left on a lake for the duration of the ice fishing season, although this can cause problems, such as thaws and re-freezing causing houses to be immoveably frozen onto the lake. Lighter, cheaper versions can collapse into a package to be moved from lake to lake during the season. These can be easily dragged by anglers across the ice to move locations or to pack up for the day.
Many northern communities have developed bodies of laws about the operation of ice shanties - frequently including dates by which they must be removed, even if the ice can still hold them.