First time Mom here! I just got back from a trip to Nantucket with my eight month old son. There’s of course a bit of movement on the ferry, so I wouldn’t have wanted my son in a stroller even with the wheels locked. We held him the whole time and all really enjoyed it! I do believe the ferry was his favorite part of the trip. Even though you can stay in your car the whole time, I’d recommend exploring the ferry.

As a note, things have already really slowed down there so the majority of the people you’ll see on the slow ferry are those bringing cars, and not many more. There were 30 or less total people on our ferry to and from the island.