Castaways Against Cancer

Castaways Against Cancer Kayaking, cycling, and running from Miami to Key West to fund cancer research & honor those who have fought the fight. In the end, it's quite simple.

Over $2.5M raised since 2000 thanks to our supporters. The Castaways Against Cancer is a 100% volunteer non-profit comprised of fun-loving, mission-driven individuals focused on fighting cancer. What makes this team unique is the series of arduous journeys it endures every summer from Miami to Key West. Kayakers paddle 160 miles over seven days, runners relay 170 miles over two days, and cyclists

pedal the same 170 miles in one grueling day, all to raise money, awareness, and honor those who have battled cancer. What began with a group of four sea-hippies on the water in 2000 has grown into a powerful movement with dozens of volunteers that has raised more than $1.9 million in the fight against cancer. The Castaways Against Cancer continues to be fueled by the original mission of its founder, Steve O'Brien, who more than two decades ago, got in his kayak after losing his mother to cancer. O'Brien was inspired to "light a candle rather than cursing the darkness," which is what the Castaways and its community of supporters continue to do. The Castaways kayak, cycle, and run, donations help the world fight cancer, and we all pray for a cure.

♠️♦️ Congratulations to the winners of this year’s Castaways Against Cancer Poker Run! ♥️♣️From Miami to Key West, our b...
06/14/2026

♠️♦️ Congratulations to the winners of this year’s Castaways Against Cancer Poker Run! ♥️♣️

From Miami to Key West, our boating community came together for an incredible day on the water, collecting cards, making memories, and supporting the fight against cancer.

Thank you to everyone who joined us and helped make this event a success! 🌊🎗️

Castaways takeover at Sloppy Joe's Bar Key West!
06/13/2026

Castaways takeover at Sloppy Joe's Bar Key West!

The 2026 Ring the Bell Tour has officially come to a close. 💙🔔Yesterday, our Castaways arrived in Key West after an unfo...
06/13/2026

The 2026 Ring the Bell Tour has officially come to a close. 💙🔔

Yesterday, our Castaways arrived in Key West after an unforgettable journey, surrounded by family, friends, supporters, and survivors who welcomed them at our closing ceremony. Together, we celebrated every mile paddled, every step run, and every dollar raised in the fight against cancer.

A special thank you to Hyatt Centric Key West for hosting us year after year, and to Papas Pilar for helping us celebrate with an incredible after party.

For 27 years, this journey has been about more than reaching Key West—it’s about honoring those impacted by cancer and helping more patients one day ring the bell at the end of treatment.

More photos and memories to come. For now, we’re resting, reflecting, and soaking it all in. ☀️🌴💙

Key West Florida Resort Papa's Pilar Rum

06/13/2026
Welcome to Key West.
06/12/2026

Welcome to Key West.

Today’s the day. 🔔After days on the water, miles on the road, and countless moments of determination, our paddlers, cycl...
06/12/2026

Today’s the day. 🔔

After days on the water, miles on the road, and countless moments of determination, our paddlers, cyclists, and runners are making their final push to Key West.

The Ring the Bell Tour is about more than reaching the finish line—it’s about honoring every cancer patient fighting for the chance to hear that bell ring. As we count down the final miles, we carry their stories with us.

Key West, we’re coming!

Our cyclists started their journey at 3:30 am in the morning! Good luck and we’ll see you in Key West later!
06/12/2026

Our cyclists started their journey at 3:30 am in the morning! Good luck and we’ll see you in Key West later!

Wheels up at 3:30 AM. 🚴‍♂️Tonight, our Castaways cyclists begin their 165+ mile journey to Key West to meet our paddlers...
06/12/2026

Wheels up at 3:30 AM. 🚴‍♂️

Tonight, our Castaways cyclists begin their 165+ mile journey to Key West to meet our paddlers and runners on the Ring the Bell Tour.

Every mile honors those impacted by cancer and supports our mission of funding lifesaving cancer research. As they pedal south, they’re carrying the hopes of patients, survivors, caregivers, and loved ones with them.

Good luck to our cyclists, ride strong, stay safe, and we’ll see you in Key West. 🔔💙

Address

Castaways Against Cancer 8724 Sunset Drive #357
Miami, FL
33173

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