A point of sail is a sailing craft's direction of travel under sail in relation to the true wind direction over the surface.
Close-hauled
Iceboats parked in irons with sails loose and not generating power, but flapping like a flag.
An iceboat is a recreational or competition sailing craft supported on metal runners for traveling over ice. One of the runners is steerable. Originally, such craft were boats with a support structure
David Vinckboons: Landscape with skaters (cca. 1615), 17th century boer type iceboats
Ice boat on Saint Lawrence River, Quebec City, c. 1858–1860
Classic iceboats on the Hudson River at Barrytown, NY
Ice Boating in Toledo, Ohio