ferry across
To carry someone or something across a body of water on a ferryboat. A noun or pronoun can be used between "ferry" and "across." No, it's fine—there are boats that can ferry us across the river.
ferry someone or something across something
and ferry someone or something acrossto transport someone or something across a river on a ferryboat. Can we get someone to ferry us across the lake to the island? After they ferried across all the cars, they closed the ferryboat down for the night.