dragonboat???

few days ago, my very good friend BEN ask me whether i wanna join in his dragpnboat team as they r now recruiting people...
as i'm a non-swimmer...din have the confident to try it out...but ben says dun have to be a swimmer and anyway he's there to save me if anything happens...
it would be great to engage in a new sport with the company of a very good friend...but then it requires certain amount of committement (dun wanna to disappoint him if i drop out halfway...haha) and also might take up some of my time esp. during competition periods...and now is my final sem n hope to be able to spend more time on my thesis...
hmmm...should i take it up or...should i wait till my thesis is over @ i graduate...
i still got to think it over...