Celeste Callahan (pictured above, front center) is a retired teacher, a 73-year-old grandmother and a pioneer in the women’s multisport community.

She’s competed in more than 250 endurance events, including four Ironman triathlons, eight marathons and the grueling Alcatraz Challenger, where she was the oldest finisher.

Her list of awards and accolades could fill a book. She’s also climbed Mt. Rainier; is a three-time Team Race Across America finisher; a world age group triathlon champion, the national duathlon champion and Grand Masters Duathlete of the Year in 2004, to name a few.

She’s also a 20-year cancer survivor and not only coaches but inspires women all across the country to compete in triathlons.

Celeste takes us back to the moment when she was a 35-year-old stay-at-home mom and desperate for something that would challenge and excite her. She explains why women need seemingly unobtainable challenges the same way men do.

Find out how even today she’s still inspiring and encouraging women to do things that are very hard and how it’s given her a feeling of redemption. Plus, she tells us about her experiences swimming in the waters around Alcatraz and why she decided to try it since it was something that terrified her.