Ocean (Col)

This is the wide open water of the sea. It is useful for fishing, especially along the coasts, and in fisheries.
==Fishing==
The yield of 4 fish stated in the game is over simplified.
An ocean square
*with no coast yields 2 fish
*with 1 or 2 coasts yields 4 fish
*with 3 or 4 coasts yields 6 fish