[hopelite]

Not to mention that no fish would have any insight into at least whatever is within visible distance from the shore surface. An accurate version of such a map would highlight an interesting perspective of how humans also lack the ability to perceive, comprehend, or even accept things they either physically or psychologically cannot perceive or do not wish to perceive and accept it.

[fph]

More importantly, I imagine a 2D map would not be useful for fish: there is much more space to represent when you can also swim up and down.

[croisillon]

the fish need more data:

- depths https://www.horizont.net/news/media/8/Die-Schaup-des-jeweil-...

- and temperature https://www.esri.com/arcgis-blog/wp-content/uploads/2019/09/...

[cratermoon]

and salinity