I'm a complete moron.
"
CD owners Only. You can now flood fill areas of zero elevation with deep water using the " key in the map editors. This was primarily added to be used with the Venhola map generator but it can be used for hand made maps as well. For shoreline maps it saves a great deal of time but be aware that sometimes beach areas are recorded by Venhola as the same level as the water so those areas and any areas of shallow water you may want troops to wade through need to be added manually
Once that's done, you can load up Google Maps/Google Earth Pro and fly to the location in question along with (
https://elevationmap.net/) to see just how steep those hillsides are in question and whether or not that land is justified as being a flat level 0 beach; which is about 150m (3 hexes) of sand in the most ideal condition (Ocean City MD)