Short course plus assessment. PART 1 - SKILLS: Sail around a triangular course, Sail a triangular course without a rudder, Sail a tight circular course, Sail a follow my leader course, Pick up a Man-Overboard, Lee-shore landing and departure, Anchor & pick up a mooring, Come alongside, Recover a capsized dinghy and sail away, Reducing sail while underway. PART 2 - BACKGROUND KNOWLEDGE: Sail & mast controls, Compass, Chart symbols, Tides, Collision Regulations, Weather, Ropework.
Practice practice practice ! Look at skills set on the ISA website.