map 1, face the cornucopia and go left, there is a lake, go to the left of the lake. there is a cliff side and right underneath it at one area is a place with 5 buttons that look like this:
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- - -
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the code is 5826
so
the buttons are basically lined up like:
1 2 3
4 5 6
7 8 9
there is one tier one chest right there, then go behind it and there is a tier 2 chests with a lava pit in front
it somethimes spawns like, 3 pairs of boots, cooked food, and clocks, but you can get iron chestplates and leggings if you are lucky