The harbour is situated at the bottom of Roskilde Fjord
There are plenty of activities at the marina and the adjacent museum of Viking boats and its harbour The harbour provides the following facilities: Diesel supply, slip-way, crane, rigging-sheers, BBQ area, playground, toilet and shower. There are 118 charts
The Frederikssund Marina is situated just beside the outdoor site of the annual Frederikssund viking play and the Frederikssund Viking Settlement with its historically correct replicas of Viking buildings.