Varpa is an outdoor game of physical skill that allegedly dates back to the Viking Age and survived in Gotland. It is similar to boules and horseshoes but is played with a flat and heavy object called a "varpa" instead of balls. Varpas used to be well-shaped stones, but nowadays, aluminium is more popular. A varpa can weigh between one-half and five kilograms. The object of the game is to throw the varpa as close to a stick as possible. The stick is fifteen metres away for women and twenty metres away for men. The game can be played individually or in teams.