Teams
There are two teams of 10 players, with 6 players of each team in water, whereas the others wait outside the swimming pool.
There is 30 minutes of game time, with a break of 3 minutes after 15 minutes of play.
Moreover a 3 referee keep an eye on the game : 2 are under water, and one is outside.

June 26, 2008 at 7:40 am
Hi PH !!!
How a referee can whistle in the water????
Do they have a catcall ????
Thieu
June 26, 2008 at 8:33 am
Good question Thieu,
When one of the underwater referee sees a fault, he makes a sign outside the water, and the referee who is outside sees it. So he uses a siren which is underwater, and everoby heard it !!
PH