For my Leaving Certificate I took the subjects, French, Geography and Business. Prior to applying for my cadetship I found out that I required a Science subject which I took up in my Leaving Certificate. 

A lot of my training and education through the Navy todate has been Maths and Science based particularly Physics. If I had a choice again I would have gone down this line in school to give me a better foundation. The subjects I chose just made everything slightly harder.