Darkvision limited to 60ft. Nighttime navigation was based on stars.
You don't need darkvision to see stars and that would be dim light, so darkvision is a boon
Then it doesn't help navigation
It still means they can see the area within 60' of the boat as bright light
How does that help with navigation?
It helps them navigate around the ship. But seriously, it could be used as a strategy to navigate with lights off and not be seen by other ships.
Humor, jokes, memes about TTRPGs
You don't need darkvision to see stars and that would be dim light, so darkvision is a boon
Then it doesn't help navigation
It still means they can see the area within 60' of the boat as bright light
How does that help with navigation?
It helps them navigate around the ship. But seriously, it could be used as a strategy to navigate with lights off and not be seen by other ships.