Without divulging anything, as a map enthusiast, are there any public images of maps submariners use to navigate? It is just like bathymetric/contour maps with similar notations? Do they look cool?
I'm going to hazard a guess, by your use of 'map' rather than 'chart', that you're not very familiar with nautical charts. A lot of what they do is chart depths, including broad contours which get more precise in shallower areas and closer to land (not always the same thing). Check out https://fishing-app.gpsnauticalcharts.com/i-boating-fishing-...
Thanks, I've "enjoyed" nautical charts before, not for use, but the design. I just like seeing different kinds of maps/schematics and seeing their symbology or notation. Want to see something for submersible navigation, I imagine it's mostly countrs and depth indicators, but what about stuff like currents, thermocline layers, landmarks... like is there a big geologic underwater arch somewhere that subs pass under for shits and giggles. What do charts show subs that operate at 500m or vehicles designed to deeper. Things like that.
What you're looking at there would suffice as source material whether your keel depth is 30ft or 300, and then many layers of planning happen atop it.
> like is there a big geologic underwater arch somewhere that subs pass under for shits and giggles.
I can't promise there's not, but most naval services have proud traditions of firing captains who are involved in collisions, allisions, and groundings.