I have no knowledge of any views of Tilbury container terminal from the North side of the river.It can be viewed from a distance from the south side . If you are using public transport get off at Northfleet bus garage and walk down Fountain walk opposite the garage. On the left is a residents private car park which can be accessed up some steps. from herer you have an end on view of the terminal and also the docks. A short distance along the road towards Gravesend is Birch Road and if you go down there you can get beside the river where other enthusiasts often congregate if there are to be any shipping movements. Anything going to or from the container terminal goes past here. You can check times on the Tilbury container website and alsio the PLA website ( but arrival times show the time , I think , when the pilot boards at for exampl e the sunk pilot so are about 4 hours early).If you have a car turn left out of Birch Road and you can get nearer the terminal but I am not sure how close you can get or what sort of views you get of the terminal.
Thamesport is not easy to observe from the south side of the Medway but very distant views can be had from Riverside Country park or further along Lower Rainham Road.On the North side I dont think you can get access to the terminal and views of the ships are rather obstructed.
Laurie