About You must be 16 years old or older to drive with an adult on your jetski. You must be 18 years old or older to rent or drive on your own. Each jetski is capable of holding up to 3 passengers, max combined weight 450lbs. A rental agreement must be signed and completed prior to getting on the water. If a driver was born in the year 1988 or after, they must complete a boater safety course that will be linked in your confirmation email. More ...