I know people have managed, but beyond using a respiration 3 helmet and trying to be as fast as I can when killing the elder guardians, I don't know how it's possible. There's just not enough air! The mining fatigue gets applied instantly even through walls, so digging through parts of the monument is not an option. Milk only gives one second of reprieve before the effect is applied again. The door trick also doesn't work in Bedrock, so I can't form air pockets.
I'm at a loss. Are there any tricks you guys have used? Is there another enchantment or something I'm missing? Any help here would be hugely appreciated.
