Sand fields are classified into three classes according to their size: Small sand fields (max. 40x60 m), sand fields for small-sided games (min. 40x60 m) and big sand fields (min. 45x95 m). In Turku there are 21 small sand fields, 32 sand fields for small-sided games and 8 big sand fields. During the winter some fields can be used for ice skating. Fields are covered with either sand or stone dust.