This is no walk in the park, but an "explorer"?, Scott and Amundsen must be turning in their graves.
For real balls you would have to say that these
South Africans have achieved a lot more, flying from Johannesburg to Oshkosh via Africa, Europe, Greenland and return via the Azores. A squadron of them led by a homebuilt.
I cannot see what the BBC's "explorer" is trying to achieve other than an ego trip.
Closer to (my) home the local club instructor flew our latest Cessna 172 from Brisbane to Kuala Lumpur. The route was via Darwin and across the sea to Kupang in Indonesia and a long flight up the Indonesian archipelago, mostly over jungle.
However let the "explorer" enjoy his flight and his pilot enjoy the flying, really envy them the opportunity to do it.