Fish are an excellent way of bringing in food, as they are plentiful and each site requires one fishing boat. Similar to farms, they can only support one gatherer, however. Still, fishing in friendly waters is a steady and efficient source of food and wealth. The one disadvantage is that, unlike farms, they can obviously not be built, limiting the amount of safe fishing sites. Fishing boats are not armed and cannot outrun the large guns of battleships or cruisers, and can be sunk in one torpedo volley, requiring that they be protected, or only be gathering fish at a secure site.