Here I'm not suggesting Atlantis just a small structure for decoration purposes really. It is made of prismarine and is in a arch form. It has 2 variates, dark and brick. In dark 2 guardians spawned in the structure. In Brick only one but no chest. It would have a rare chance of having an underground tunnel with a chest. The lapis ore is where the entrance is Ideas for chest loot would be prismarine shards, Sea Lantern, Lapis Lazuli, Water Buckets, Sponge? Leave ideas in the comments for that. Here's some pictures of what I mean:
Tunnel Part 2:
Chest loot ideas:
So what do you think? The brick is still useful as there is obsidian in the ruins. These are just fun for adventuring purposes.
Yes ! I always think ocean monuments are not done yet , and this suggestion is good ! also , how about in the tunnel there are some eggs , they are guardian eggs , when hatching , they breath air but soon will go into water , they live in these tunnels and move by jumping , they have lower health and attack damage than guardians , you can silk touch the eggs to use some for decoration or to put some guardians in your aquarium in survival , also I like how you made the ore quantity higher in these tunnels
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