As Riverman2903 states Peel Ports do not make their lists public.It's essential to monitor AIS and if you have a Marine Band receiver Medway VTS operate on Channel 74 (156.725).The three places I photograph the ships are. 1. On the beach by Garrison Point.Walk along the prom at Tescos and head West...at the end is a huge pile of rocks and then a notice not to go any further.That is the closest point from shore to ship.
2.Barton Point.Halfway along the road between Minster Beach and Barton Point is a vehicle access point to the beach.You can take the car along the shingle sea wall towards Barton Point.You can park anywhere along there and this year I have noticed it is free parking.I usually park opposite the "Richard Montgomery" wreck site.With a good telephoto you can get some good shots of shipping passing close to the wreck.This time of the year you may pick up heat haze and shimmer.Do not go along there in the evenings as the local lads use it as a race track doing hand brake turns Aaaaaargh!!!!3. Queenborough.If there is room you can park on the jetty by the All Tide landing Stage or the public car park by the toilets and pubs.(Free).If there are coasters due for the Swale then walk along the prom to the slipway near the wind turbines where you can also get some shots of the Thamesport and maybe a LNG tanker.
Have a look at the webcams on this site....http://www.iossc.org.uk/weather/index.php?n=4
I will try and send you some photos to your website on Friday.
Hope this helps.
Best to you.