Fishing boats allow a civilization to harvest the valuable crab, fish, whale and pearl resources. to construct fishing boats, you must build a work boat in a coastal city (after your civilization has learned the requisite technology). work boats are consumed when they construct fishing boats.. They embark like other units and move to a sea tile where they use a charge to instant build sea improvements. there are no "fishing boat" units in civ6. but it is possible that the sea improvement for fish is a collection of fishing boats but they are not the same as the civ5 fishing boats that you built in a city.. Fishing boats are unlocked by researching sailing and are built by builders (as a tile improvement, like farms and plantations) -- they are not a separate civilian unit that is built in the city production menu, as was the case in civ v..
Another 25 turns played, another 25 turns of learning how to play. i find my first natural wonder, then i realize that i can't build fishing boats.... +1 gold from the fishing boat improvement. all naval and embarked units can navigate ocean tiles. +1 movement for embarked units. build 2 harbors. unit: caravel mass production n/a build a lumber. Yeah it needs to be so you can build a harbor and all that stuff which give food bonuses for fishing. but like nd40 said its a work boat. if the cities on the coast it will show up at the top of the list below workers..