The Crabs conduct the annual Swim Thru’ Rottnest on the first weekend in December and over the years have donated a total of $188,000 to the PathWest Bone Marrow Transplant Unit, Fiona Stanley Hospital (formerly Royal Perth Hospital Bone Marrow Transplant Unit).

In addition, the sum of $6,200 has been donated to the Rottnest Nursing Post to assist with the purchase of a heart defibrillator and $1, 000 was donated to SIDS and Kids (WA).