Participants must be 11 years or over, must be able to swim and must have previously completed CANSail 2. Lasers and RS Fevas.

Sailors at this level will refine and improve their skills from CANSail 1/2 to become more confident sailing alone and in pairs. CANSail 3 introduces boat tuning, sail trim, backwards sailing, roll tacking and surfing. All sailors are given opportunities to apply their individual sailing skills and sail with friends. A minimum of two weeks of sailing are required to complete this level.