Amy Appelhans Gubser became the first person—man or woman—to complete the swim from the Golden Gate Bridge to the Farallon Islands.

Nearly 30 miles. About 17 hours in the water. No wetsuit.

Temperatures in the low 40s. Currents, cold, and waters known for sharks.

It sounds extreme. But the way she describes it is surprisingly simple.

Thirty minutes at a time. Feed, reset, keep going.

In this conversation, we get into what that actually feels like—and what it takes to stay in it.

We talk about:

•  How you prepare for something where the margin for error is thin 
•  What cold water does to your body—and your mind 
•  How she manages fear in an environment she can’t control 
•  The role of routine and structure during a 17-hour effort 
•  What her work as a nurse taught her about staying calm under stress 

There’s no bravado here.

Just a very clear way of approaching something difficult—and staying with it long enough to finish.

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Topics: longevity, fitness over 40, endurance training, aging athletes, recovery, injury prevention