[umanwizard]

Walking in a spiral pattern (where the layers of the spiral are close enough that if you look toward the center, you can always see the point where you were on the previous layer) will guarantee that you eventually see all points on any given radius.

[mousethatroared]

You're not wrong, but this is proof that Id rather be stranded in the wilderness with an archeologist than a CS major (I'm assuming).

An archeologist would walk down a gradient until they find a stream and therefore a fluvial network to a human settlement.

Your answer gets me killed.

[moralestapia]

"Easy, we just A-star this thing and walk for a maximum of 273 days."

[jedberg]

That could be an awful lot of walking though.