"Dianagivation"

If the Earth is flat and circumnagivation is a circle path, why has no one sailed straight across the earth?

If the Earth is flat and circumnagivation is a circle path, why has no one sailed straight across the earth?

I don't agree with the flat earth map, but if you try the circumnavigation by boat via the equator you do bump into a lot of land.
You could do it to the south of Australia, South America and South Africa as in the route of the Vendée Globe Yacht Race.
Here is the route:

Lots of solo sailors have sailed this route, and the distance is far less than it would be on the "Icewall Flat Map". You can look up details here Vendée Globe.