Foodvalten's got these amazing cliffs. They're nearly death to navigate, extremely high and getting through them is monstrously difficult. Growing things there is even harder, but the people are clever as hell. They manage and then some. Harvest time, no wait, the feast right after harvest -- [Screw working] when they've got the feathered headdresses -- [Aw yes, feather love] and everyone comes together to show off all the amazing stuff they grew.
[Video]
That's my current pick.