From Rock Bottom To Purpose
How a lifeline arrived over beers
The Effortless Swimming Podcast
Feb 13, 2026 · 43 min · 17 segments
What would drive someone to voluntarily swim through the most dangerous ocean channels on the planet — no wetsuit, no cage, no way out except forward? In this episode, we sit down with Mark Sowerby…
And, uh, and what, what I found, uh, when I f- when I get into those really difficult times, I start to, um, literally like a y- you know, you picture a Rolodex, the old Rolodex.
... of the things in my life, and, and trying to find something to grab onto that is the reason for this swim.
And, you know, sometimes it was that, you know, I wanted to build, rebuild my courage to go after some of the people that had, that had done these things to us.
So, you know, at some level there's, there's justice and there's revenge, and I would picture them in my head and [laughs] all that sort of stuff.
But other times it was, it was very personal or, um, a- and, and or it might, you know, might have been to, you know, for Heidi or the boys.
And so y- I, I think having all those layers and then being able in your own mind to choose what's important to you on the day, not knowing what that's gonna be, and it was funny.
So with the Cook Strait it was, um ... 'cause I was really, you know, not fit enough for that one, is, is, you know, one ...
On the Ocean's Seven list it's got, you know, one remaining, two remaining, three remaining.
And, uh, and what, what I found, uh, when I f- when I get into those really difficult times, I start to, um, literally like a y- you know, you picture a Rolodex, the old Rolodex.
... of the things in my life, and, and trying to find something to grab onto that is the reason for this swim.
And, you know, sometimes it was that, you know, I wanted to build, rebuild my courage to go after some of the people that had, that had done these things to us.
So, you know, at some level there's, there's justice and there's revenge, and I would picture them in my head and [laughs] all that sort of stuff.
But other times it was, it was very personal or, um, a- and, and or it might, you know, might have been to, you know, for Heidi or the boys.
And so y- I, I think having all those layers and then being able in your own mind to choose what's important to you on the day, not knowing what that's gonna be, and it was funny.
So with the Cook Strait it was, um ... 'cause I was really, you know, not fit enough for that one, is, is, you know, one ...
On the Ocean's Seven list it's got, you know, one remaining, two remaining, three remaining.
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3 of 8
From Rock Bottom To Purpose
How a lifeline arrived over beers
The Birth Of "Don’t Be Prey"
A scientist reframes fear into power
North Channel: Unimaginable Suffering
When the cold nearly broke him
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