Each child must have completed Red Cross Swim Kids Level 5 or above, or Canadian Lifesaving Society Swimmer 4 or above. Swimmers must be able to swim 50 meters without interruption, using any of the four strokes. The coaches may make an assessment of a swimmer deeming them unable to join the team at the current time due to ability. Returning swimmers are automatically eligible to re-register, provided they have met the minimum swim ability and the attendance requirements from the prior year. While competitive registered year-round winter swimmers are not eligible to join the Beavers, pre-competitive year-round swimmers are eligible to join.