In principle, mooring is free provided that there is no mooring ban in force and the owner of the dock agrees. Never moor in the reeds!
All De Driesprong ships are equipped with a Markrite flag, so you can safely moor at one of the Markrite berths. At a Markrite berth, you can stay in the same place for a maximum of 72 hours.
Unmanned vessels may not be left behind; that may only be done in a marina or along a specially designated berth on the quay.