Not satisfied with running the length of New Zealand and Japan, Wanaka plumber Jup Brown is now traversing the United States on foot.
Mr Brown (41) is three weeks into his latest ultra-distance charity challenge, running 5600km over 160 days.
He began his cross-country odyssey on January 16 at Huntington Beach, California, and will finish in New York towards the end of June, all the while promoting and raising money for children's fitness charity the 100 Mile Club.
Until earlier this week, he was running in a team of 12 as part of the Race Across the USA challenge. But unhappy with the way the event was being managed, Mr Brown decided to go out on his own.
''I went out and bought a jogger buggy and spent the day sorting my gear so it will fit ... and started running, pushing the buggy, the next day.''
He has now been joined by fellow Race Across the USA team member Patrick Sweeney, of California, and two of Mr Sweeney's friends have come on board as support crew for the remainder of the challenge.
At present the pair are running across Arizona, one of 13 American states they will pass through.
In 2011, Mr Brown ran 2939km from Stewart Island to Auckland to raise more than $15,000 for the Stroke Foundation.
The following year, he ran 4259km the length of Japan, raising $25,000 for tsunami-devastated regions.
He has also twice run an ultra-marathon high in the Himalayas and most recently a fundraising marathon on a treadmill.
''I love to travel and meet people,'' Mr Brown said last week.
''When I had the thought to run New Zealand, the running was the last thing I thought about, even though it was how I would do it.
''Then, when I did it and felt everyone getting behind my idea and helping make the trip amazing, I didn't want it to end ... I loved every minute.''
A friend then suggested the Japan challenge and ''all I could think of was being in that feeling again''.
He was undaunted by the even longer distance across the US.
''I see it as more time to meet people, get them involved and see their country while having the best time ever. I wouldn't want to live any other way. And I get super uber fit at the same time, and can eat anything my eyes see.
''I know it is crazy and hard on my body to run this much every day, but that's not what I think about ... I just love being in that moment.''
Despite the huge task ahead of him, Mr Brown had no fear of failure.
''I so believe now that if I take the first step in anything it will happen.''
Based in Japan and Australia for most of the year, Mr Brown regularly returns to Wanaka where his passion for ''doing good'' in the world began.
''I always invite others to join me and will run slow enough for small children or elderly people to share the fun. I am all about sharing my joy for life, and I love making people smile.''
