I have been down to this site several times and never seen anyone on there.
I have looked at their website and do not recognise any , bar one, of the pictures as being this site.
The only one that I can say is of there is the one pic of the portacabin toilet block.
The site name is a bit misleading, the site is not on the riverside, it is behind a residential park home site so one cannot actually see the river from the site.
If you don't want any facilities then this site may be for you as what is there is very basic.
There are much better sites on the Island and some have arrangements with the ferry companies which give very good "package" deals which include the ferry fare.