How old do you have to be to ride a SeaDoo by yourself?

I'm 13... almost 14 and i was wondering if i can go SeaDoo-ing with my family on my own Sea Doo or if I have to ride with a parent? Do you need a boat license or something? Please answer!!!|||it depends on where you live. many states, you can pass a course and get certification to go alone. some states, at that age, you have to have an adult 18 or sometimes 21 with you. some states you can't be alone unless you have the course even if you're 20. type in ________ boating laws. enter your state in the blank. you will come up with a boat-ed link to answer all of your questions.|||when your 14 you can, but you gotta have supervision, as long (as they can see you) and the sea-do has to be under 30Horsepower