DIY Coastal Terrain

I decided on the spur of the moment this morning to make a start on some homemade coastal terrain for my 1/2400th scale naval wargaming. I have had a stash of high density polystyrene foam off cuts for years in the garden shed, so I dug them out and sliced them up to glue on to some 9'' x 6'' art board panels, so that they have a protective base and so that I could make a modular set of cliff and headland pieces. 

The 9'' x 6'' format just happened to be the size of the art board that I had lying around but it's not a bad size, being easy to store but also suitable for 6' long shoreline or a slightly less than 4' one, give or take a 3'' filler section that I can easily make to extend the length. I doubt I'll need a whole 6' length of shoreline anyway, although I may need to make some corner pieces so that I can form projecting headlands.

I've only made a few pieces but can add some more, as I have plenty of foam left over and some spare cardboard too. The next stage will be to wrap the edges in masking tape to protect them, then add a texturing coat of filler and a sprinkle of grit and sand for the base of the cliffs and the beaches.  I'll leave the cliff tops flat so that I can plonk on some scale specific terrain pieces like shore batteries, which I can mount on templates and use as required