Water polo is played in a pool 1.8 metres deep, 30 metres long and 20 metres wide, with a goal 3 metres high and at least 0.9 metre above the water. The goal is marked by vertical posts, a crossbar and a net. There are seven players per team, six swimmers and a goalie. The home team wears white caps, the visiting team blue ones and the goalies wear red caps with the number 1 in white.