Swim Thru Rottnest 2026

Now in its 49^th year, Swim Thru Rottnest is one of the longest-running events on Wadjemup / Rottnest Island.

Hosted by the Cottesloe Crabs, participants can choose from 500 m and 1600 m swim distances in the crystal-clear waters of Rottnest Island. Whether you’re chasing a podium finish, diving into your first open water swim, or making memories with your friends and family, there’s a race for everyone.

This event also raises important funds to keep the local community swim group, the Cottesloe Crabs, running, and contributes to the Western Australian Bone Marrow Transplant Unit at Fiona Stanley Hospital.

Online registrations close Friday 4 December 2026 at 10 am.