Dr Rip's Science of the Surf (& dye release rip identification demo) - 22 January 2026

Don’t miss this fascinating, entertaining, and multiple award-winning presentation by Australia’s renowned surf scientist, Dr Rob Brander!

Known as ‘Dr Rip’ for his unique method of demonstrating rip currents with purple dye, Dr Brander will share his expertise on how beaches work, how to identify dangerous rip currents, and most importantly, how to get out of them.

Stay safe in the surf this summer and gain a deeper understanding of your favourite beaches by learning how to ‘read’ beach and surf conditions in this informative and engaging talk.

Dr Rip will throw purple dye into a rip current at Maroubra Beach following the talk.

What they said: "Just want to say I’ve been swimming at the beach since I was a toddler. I’m now 57 and found that talk by Dr Rip, just brilliant, learnt the most I have from any presentation on Rips, thanks".

Dr Rob Brander aka Dr Rip

Photographs, videos and voice recordings

Randwick City Council staff may on occasion take recordings of participants during activities (including photographs, videos and voice recordings) that could be used for the following purposes:

• educational or community information purpose

• Council displays and promotions of community education events

• to complement the promotion of Randwick's Marine and Coastal Program.

If you DO NOT wish for the participant’s recording to be used according to these conditions, please indicate this during the booking process.

Cancellation conditions

This activity may be cancelled due to insufficient bookings or poor weather. Participants will be advised in the event the activity changes or cancellation occurs. All care has been made in the preparation of the January 2026 Marine and Coastal Discovery Program, but some changes may occur due to circumstances beyond the control of Randwick City Council. Refunds will be provided for paid activities up to 48 hours prior to the activity start and in the event of cancellation by Randwick City Council.

This program is a Sustaining Our City initiative and is funded from Randwick City’s Environmental Levy.

Randwick City Council acknowledges the Bidjigal and Gadigal Peoples who have traditionally occupied the Sydney coast for thousands of years, the Traditional Custodians of the land. We celebrate their ongoing connection to the land and waters of the coastal area and their contribution to the life and identity of Randwick City. We acknowledge and pay respect to Elders past and present.