I know they're still working on the generation rules and everything, but man, right now caving is MISERABLE in the beta on Bedrock Edition. I don't know if Java is the same way, buy literally about 90% of the cave space in the current version is filled floor-to-ceiling with water and it makes the entire experience just awful. Without Respiration III on your helmet, your character has the underwater breath time of an asthmatic toddler, and the mining time increase underwater even while standing on a block means that you literally can't even make it 6 blocks away without starting to drown by the time you punch into a wall to create an air pocket.
In addition to that, just FINDING a good cave is so hard. I have yet to find a single cave entrance that wasn't ocean-level and completely waterlogged.
I really hope they're still tweaking this stuff, because if this is how caves are going to be from now on, it's completely killed my anticipation of it.
which beta are you on? i havent had any water problems unless i am digging. then i block it and turn. i am working beta 220.127.116.11. the cave i am exploring i found at level 14 and it went to level -56, mostly narrow cave but now i at level -20 and have a big room to explore. i am looking for amethyst but not finding any at all yet.
I'm on the latest beta. The only caves I've been able to find that aren't the old "noodle caves" are surface-level ocean-entrance caves 100% filled up with water, or huge caves that are 70-100% filled with water. If the generation was changed so that this happens in only 10% of caves, it would be way better.
so far in beta 18.104.22.168 i dug down to level 17 and see a cave. dug down to level 8 and enter the cave. i follow the cave up to level 26 where i find a lush cave with moss blocks and moss carpet and azalea flowers. this is the first time i have found these thinks in the beta. have to read up on these items to find out what to do with them. i am continually seeing zombies, scarecrows and spiders at the lush cave. need to get some iron armor to go back there. but haven't seen water other than it comes when i am digging.
I thought the decision in 1.13 to make (most?) caves in ocean biomes flooded was bad enough, turning them into complete no-go zones; what's the point of even adding larger caves if you can't actually explore them by caving? Maybe Mojang is afraid that large caves will make it too easy to collect the ores they expose but I've actually collected ores at a faster rate in my first world, with vanilla generation; I've killed as many as 600 mobs in a single giant cave and accessing ores in the ceiling requires a lot of scaffolding. Or that you need to do a lot of searching to find anything good - the world should be a vast continuous underground network (granted, most of this is not obvious from the surface so just exploring across the surface won't reveal much; even my "giant cave regions", which are over 300 blocks across, may only have a few small surface openings which look no different from normal caves; things like this are pretty rare).
And some people wonder why I have no interest in 1.17 (or 1.18) - Mojang will never be able to do anything better than what I've been doing for over 7 years since I can change things to be exactly the way i want them (among other things, I even eliminated cave-ins due to sand/gravel in the seafloor, the only water to be found is from lakes and springs, as found anywhere else):
These are all the various types of caves that can be found in TMCW, including more variation of existing caves and structures:
This map only shows the cave variants shown above, with "vanilla" caves (which themselves have more variation), ravines, and mineshafts (also more varied) removed; these alone represent about 2/3 of the entire underground volume, and about 50% more than everything in 1.7+:
This shows how the underground air volume in my mods has generally increased over time, with vanilla 1.7-1.16 (and perhaps 1.17 has a similar per-layer volume, just deeper) the lowest curve and the latest version of TMCW the highest (you can see that I also made mods that make the ground deeper, even deeper than 1.17, but I prefer more horizontal exploration; interestingly, TMCWv5 has a higher total volume than Double Height Terrain, and most likely, 1.17 (or 1.18) if Mojang hasn't significantly increased the overall volume of caves):
This is the largest single cave that I've found, with a volume of 1.1 million air blocks, which is still less than a giant cave region, around 1.7 million:
These are my idea of "underground biomes" - all blocks are replaced with biome-specific variants, not just some decorations here and there:
Is that what a "lush cave" is?
The wood type in mineshafts is also based on the wood used in the trees it has (treeless biomes generally default to oak, while some use different wood types):
This is what happens when a cave generates under the ocean; it stops a couple blocks below the seafloor and sandstone/cobblestone replaces sand/gravel so it doesn't fall (this shows stone but I later replaced it with cobblestone since gravel deposits could replace it):