The Story
I will never say the Rottnest Channel swim is easy but after 6 successful solo crossings I was ready for a new challenge.
It all began with a simple question.
“What if you swam it butterfly?”
At the time only a handful of people in the world had ever completed a marathon butterfly and there was no proven method to do it safely.
Most experts warned that the risk was too high and I might not swim again.
What began as a personal challenge became a journey to develop a safer, more sustainable way to swim butterfly.
That journey led to the creation of CyFly.
CYRUS MILNE
On 25 February 2023, Cyrus Milne became the third person to complete the Rottnest Channel Swim butterfly and one of only a small number of people worldwide to have swum 20 km butterfly.
After 9 hours and 28 minutes battling the ocean, he crossed the finish line and proved that what once seemed impossible could be achieved.
But Cyrus is not just an endurance swimmer.
As an award-winning swim educator and coach, he recognised that the same principles that made CyFly easier to swim also made butterfly easier to teach.
Since then, Cyrus has presented CyFly and its teaching methods at industry conferences and to swim schools, with the goal of changing not only how butterfly is performed, but how it is taught.
CYFLY ACHIEVEMENTS
24hrs Butterfly
Swim for Life (Men's Talk)
Cyrus trained five swimmers to take on one of swimming’s most unusual endurance challenges: a 24-hour butterfly relay.
With only six months to prepare, each swimmer learned the CyFly technique and developed the ability to swim repeated 15-minute butterfly efforts in an alternating relay over 24 continuous hours.
Together, the team completed the challenge safely while raising awareness for men’s mental health
10km Open Water Butterfly
10km Open Water
Two young swimmers trained by Cyrus each completed 10 km open water butterfly swims using CyFly.
Both swimmers finished in just over four hours, adding two new members to the exclusive marathon butterfly community.
An extraordinary achievement that demonstrates what is possible when butterfly becomes sustainable.
Community
Swim your first strokes
The greatest achievement of CyFly is not a record or a medal. It is making butterfly accessible to people who once believed it was impossible. CyFly can be performed with minimal shoulder strength and mobility, making butterfly achievable for older swimmers, those with physical limitations, and anyone who thought this stroke was beyond their reach.
