Of the free ferries this is probably the least interesting for you as a visitor, as there are no important tourist attractions in this part of Amsterdam North.
The ferry is for pedestrians, cyclists and mopeds.
The ferry operates until midnight (after midnight you must use the Buiksloterweg Ferry).
NOTE: as of 7 July 2014, the ferry terminal at the Central Station side has moved a few hundred meters in Eastern direction.
Ferry across the IJ, to Amsterdam North