Google has slowly changed how it displays driving directions to limit routes to ones it thinks burn less fuel. When plugging in the drive to get to my parents it presents one option that uses a ferry. The directions treat the ferry like a bridge that you could use at any time, and it no longer presents alternate routes that use actual roads.
The ferry runs twice a day.
@Apiary In case you didn't know you can go into the settings and turn off "allow ferries" to prevent it from suggesting routes that use a ferry. And you can also turn off suggesting fuel efficient routes.

Like obviously Google is broken and they gotta fix it, but at least if you turn off all the smart settings you could get back to suggesting functional routes.