How many empty buckets do you think I'd need to get to replenish my breath while swimming up from bedrock to the surface with no potions or enchantments?
I was blown up by a creeper while examining an underwater ruined portal with about 10 diamonds in my inventory, I'm hoping there is enough of a downward current to keep my stuff at the bottom so I can just run back through my mine but I want to be prepared in case I need to get to the surface.
It's not all that big a deal even though I've just started out on that world, I like mining and I know that I will relatively soon have all the diamonds I need even without Fortune.
If I can get them back it would be nice but I'm really more interested in examining the ruined portal, it doesn't really seem to jive with the description in the Wiki, I can only see 3 or 4 obsidian and they are all lying flat in the floor, I can't see any loot chest and the stone bricks seem to be spread over a larger area than the pictures in the Wiki would suggest.
The Meaning of Life, the Universe, and Everything.
So, in 1.16, you can't replenish air immediately, because.... realism, I guess? So, I'd recommend you take a few doors with you, if the ruined portal is a long journey underwater. Then, SWIM! you should be able to get some of your stuff on the magma current, but you'll have to replenish your air in the door after you get the stuff on the magma current. Then, swim upwards to get your stuff. You may take a few hearts of damage, but if you have a block of Soul Sand lying around, just place it and it'll boost you up. Very helpful.
Thanks for the suggestions but I'm serious when I say this is from bedrock level and I have no potions, enchantments or soul sand.
I know from previous experience that that is way too far to just swim up without drowning.
Getting to the portal wasn't my worry since it was attached to caves, and since it was at the bottom of a ravine I could have dug or built my way up about half way if I weren't in a rush to get any stuff that had floated up before it despawned.
As it turned out I still haven't been able to find my way back, I guess it wasn't in the direction I thought, so if my stuff hasn't despawned it no doubt will by the time I stumble upon it again.