To drive the jet ski on your own, you would need to be over 16 years old.
13-16 year olds can drive with an adult on the back of the jet ski.
12 and under are only able to be passengers, at a cost of £20 p.p.
As per the terms and conditions, any damage or loss is your responsibility and will need to be paid for in full.
If you would rather watch than drive, you can do so with an instructor on either a RIB or ski for £20 p.p.