Set a Water World to be playable in Minecraft Survival

This days I found that Minecraft have in world generator a customize options that have some presets type of worlds.
So I tried each one, but the water world excited me very much. So, I got an idea to play it on a server in survival mode.
But I noticed that here are no trees. Survival mode without trees ? Nope.
I tried to make the map height limit bigger (no idea how), to make the sea level lowest (but the big towers remains at y = 256) and few more changes. Second one spawned very few trees, but how I said, big towers remains at y = 256 :( .
Is there any way to make height cap bigger ? Or to make smaller both sea level and the towers ?
Is it anything else should I worry about playing this type of world in survival mode (eg animal spawning, strongholds, dungeons, etc.) ?
I noticed that End and Nether are normal.
Thank you very much.
Best Answer
Okay, so you should be able to just change how much water there is. go to the preset tab and at the top it says the what you should expect from the seed. well, you can edit that. for example,
"3;minecraft:bedrock,2*minecraft:dirt,minecraft:grass;1;village" is classic superflat. so, select water world, the edit it to how much water you want. hope this helped.
Pictures about "Set a Water World to be playable in Minecraft Survival"



How do you make a water only world in Minecraft?
All you do is dig out your lake. (i.e. 6 blocks deep and also a rise near the edges) Then you do 1 layer of dirt where you want the water level to be. Fully cover the lake with the one block high layer and fill/overlap with water.Minecraft 1.19 Survival WORLD TOUR AND WORLD DOWNLOAD (With Commentary) (#50)
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Roger Brown, Monstera, Asad Photo Maldives, Asad Photo Maldives