Country Neighbour Connect: Most Elevated, starting with World's Most Elevated
Always choose the most elevated neighbour, when left with no neighbors go back to the previous country and follow with second most elevated neighbor. In case of countries with same maximum elevation, you choose the one with highest minimum elevation and, if it's still a draw, the one with highest average elevation.
Start with Nepal!
Overseas borders are considered: UK-Spain, Spain-Morocco, France-Netherlands, France-Brazil/Suriname
Dubious India-Sri Lanka and Qatar-UAE are not considered