Riley Anthes » Raising Awareness for Testicular Cancer

24km Marathon Swim for Testicular Cancer Awareness

From Palm Beach to Shelly Beach, Riley Anthes is taking on a 24km open ocean marathon swim to raise awareness for testicular cancer.
After beating cancer himself, Riley is turning his personal journey into something bigger — raising awareness, encouraging early detection, and supporting others facing the same battle.

Riley’s Story

A few years ago Riley Anthes faced something completely unexpected — a diagnosis of testicular cancer.

Like many young men, cancer was the last thing he expected to deal with. Treatment, recovery, and the mental toll of the diagnosis changed his perspective on life.

After beating cancer, Riley decided he wanted to turn that experience into something positive.

The 24km marathon swim is his way of raising awareness about testicular cancer and encouraging men to take their health seriously.

Because early detection can save lives.

Every kilometre Riley swims represents resilience, survival, and hope.

Support Riley's Swim

Donate to Testicular Cancer Awareness

Palm to Shelly – April 11th 2026

The Swim Challenge

This swim is part of Australia’s Triple Crown of Marathon Swimming and requires experience, preparation, and endurance.

Swimmers face:

Ocean swells and strong currents

Cold water temperatures

6–10 hours of continuous swimming

Mental fatigue and physical exhaustion

This isn’t just a race – it’s a true test of endurance, resilience, and mental strength, and every kilometre Riley swims represents his commitment to raising awareness for testicular cancer.

Proudly Supported By

Riley is proudly supported by AG1, a premium daily nutritional supplement designed to support energy, recovery, and overall health.

Endurance training places huge demands on the body, and proper nutrition plays a key role in preparation and recovery.

AG1 helps Riley stay fuelled and ready for the long hours of training required for marathon swimming.

Training for the Ocean

Preparing for a 24km marathon swim takes dedication, discipline, and countless hours in the water. Riley’s training includes:

Long-distance ocean swims

Nutrition and recovery planning

Strength and endurance training

Mental resilience training

Cold-water conditioning

Early mornings, tough sessions, and relentless preparation are all part of the journey to the start line.

The ocean is unpredictable – but Riley is ready for the challenge.

Support Riley’s Mission

Riley’s marathon swim is about more than completing an incredible endurance challenge — it’s about raising awareness and support for testicular cancer. There are two ways you can support Riley’s mission.

Support Riley’s Swim Costs

Training for and completing a marathon swim involves a number of costs including entry fees, safety support, logistics, and preparation.

If you’d like to help Riley make this swim possible, you can contribute to his fundraising page which helps cover the expenses involved in taking on the 24km Palm Beach to Shelly Beach marathon swim.

Support Riley's Swim

Donate Directly to Testicular Cancer Awareness

If you’d prefer to donate directly to the cause Riley is swimming for, you can contribute to the Testicular Cancer Awareness Foundation. Your donation helps support education, awareness programs, and resources that encourage early detection and support men facing testicular cancer.

Support the Cause

Get in Touch

If you’d like to support Riley’s marathon swim, discuss sponsorship opportunities, or learn more about the mission to raise awareness for testicular cancer, please get in touch.

Simply complete the form below and someone from the team will respond shortly.