Anyone UK based know what’s the easiest* thing/licence I can get in the UK that would let me hire one of the 30hp pontoons in Bora Bora?

(* Ie I really don’t want to spend days doing a course and I’ve never driven a ship before, but I’m not a lunatic so I’d be perfectly safe because it’s hardly going to be hard to use - so thinking there must be some online multi-choice quiz I could do that would let me print off a certificate at the end?)