Our ducks really enjoy their in ground kiddie pool.  They are so funny to watch.  Even the chickens enjoy watching them from their chicken run which is separated from the ducks pin by chicken wire.  The ducks were much smaller when we got this pool so we are going to have to get them something larger to swim in before too long.  I am not sure what type of ducks these are except maybe one blue swedish, some West Indies, but the others are a mystery to me.