Trev, the two places that I have used are both sides of Garrison Point. Park in Tesco's car park, Sheerness, then go to the sea wall and walk east along the sea wall. You can get very close to Garrison Point itself and take photos with Southend as a distant backdrop. This gets you pretty close to the ships as they round the point. The other place that I have used is the sea wall at Queenborough. Go to Queenborough, down the High Street about as far as you can go. There is a small park, with public toilets, opposite The Old House at Home pub. At the east side of the park there is a small car park. Also you can drive on to Crundall's Wharf, where you can normally park. This gives some access for photos with the Isle of Grain and Thamesport as mid distance backdrops. It is possible to walk along the sea wall, towards Garrison Point but you will then come to a fence which encloses the imported cars compound. The path does continue along the fence, on the land side around the port of Sheerness and if you we're to continue along this path you would arrive close to the Tesco car park having walked halfway around the port perimeter fence. I hope you find this useful.