I would like to stress that just because you are a water sign, doesnt mean water is your element! It is completely based on you, not the time you were born. Things that decide what your element is are based on personal things, eg:
What element do you feel most connected to?
What is your favorite colour?
What element do you feel represents your personality?
And of course so much more. Also, I think when people reply 'meditation.', people who want to find out their element will not be skilled in that type of meditation. So, Denico, ask yourself those questions and find out how to do elemental meditation by Googling. :).