Jet Sking
Note New Spanish Law:
To be able to jet ski in Spain from 1 April 2002 you need a licence to go on the water and must be 16 or over.
If you are under 18 years old you must have a letter of authorisation from your parents or guardian and also a Personal Watercraft licence.
From 18 years + you just need to have a Personal Watercraft licence.
Also, All Jet Skiers must carry every document with them whilst on board at all times (licence, insurance, registration etc.)
Just found this, I didn't realise that you can't even hire one without a licence !