At present, 'Increase water height' and 'Decrease water height' are in 'Landscape tools', and are free. I suggest that either they should cost at least as much as the climate changing tools, or they should be moved to the (public player only) 'Map Editing Tools'.
This seems sensible, although this is, so far as I understand, equally an issue with Standard, and, I am not quite sure, because I have not looked into it, whether this is pakset specific or dependant on the code. I am moving this to the Standard board that it might be discussed further there.