Nice place with a public washroom near not to far avay.
Right next to the small boat marina and only between 1 and 2 Km from Kronborg, Hamlets castle.
The city center of Helsingør is in walking distance.
There is a little noice from a nearby railroad but its not to bad.
Here you are. A video from Kronborg. https://www.youtube.com/watch?v=DHAO7IMLqOY
Here you got a video from the area. The boondocking spot is at the end of the video.
https://www.youtube.com/watch?v=kJ2PATIWpis&t=1s