 Furthermore, there are five ferry lines for pedestrians and bicycles operated by the Gemeentelijk Vervoerbedrijf (GVB) to cross the IJ.They are operational 24 hours a day.They depart every two minutes for the Centraal station–Buiksloterweg connection (two boats at a time for this short distance) to every half hour for the Centraal station–NDSM-werf connection (one boat at a time for this long distance), with Centraal Station directly accessible due its waterside location on the other side of the IJ.