Graham David Hughes is the first person, according to Guinness World Records, to visit all 193 United Nations member states and several other territories across the world without flying. While on his journey he presented the television programme Graham's World on the National Geographic Adventure channel.
I have had the pleasure of meeting him about 5 years ago. Brexit brought us together so at least some good came of it.
Before his epic adventure, he went out with a group of friends in his native Liverpool to celebrate his birthday. The next year, they met without him but the group had grown in size. Now, every year on his birthday there's Global Scouse Day There's more: he won Jinja Island on a reality TV show and is interested in meeting investors that can help him turn it into a high-end eco-retreat