Have a look at the Course Dates information for full details including who can do each course.
In summary we have the following courses on offer:
RYA Youth Stage 1 & 2 (Cadets)
RYA Youth Stage 3 & 4 (Cadets)
RYA Seamanship Skills (For Cadets and Volunteers)
RYA Day Sailing (For Cadets and Volunteers)