Hi, I'm currently working on draining a monument and transforming it into a base and I also plan on draining the space around the monument. I only want the main entrance to remain under water in a glass tunnel as some sort of "underwater entrance".
I haven't finished building yet but the guardians really go on my nerves because of their sound as well as the annoying lasers that keep killing me. I figured that when I drain all of the ocean around the monument including the monument itself all of the guardians would probably spawn in my glass tunnel entrance and I don't want that. So first of all could someone please confirm that there would be guardians spawning at all and maybe how I could prevent them from besides playing on peaceful.
Also sorry for my lack of english skills, I'm from germany.
If using a 2 block wide tunnel (the entrance is 2 blocks wide i believe?), you could run your tunnel up to the entrance, but remove the water just between the entrance and the edge of the monument (use signs or something to hold the water back) like my sketch below.
Hex's U bend idea ( ) would also work, Guardians only spawn inside the bounding area of the Monument itself which does not include the pillars it often generates on. Obvs, guardians do appear in these areas but that is because they have usually drifted down from above or swum in from elsewhere.