As a change from London, visits to the wilds of East Anglia are always inspiring especially in the winter. Literary inspiration from M R James and W G Sebald brings to mind ghosts of the past and melancholy journeys. Recently read novels Darkhenge by Catherine Fisher and The Crossing Places by Elly Griffiths both make use of archaeology and mythology and a saltmarsh landscape where a (real) wood henge was discovered on the North Norfolk coast. Although not in the league of the above writers the landscape is a beautifully evoked feature of both of these novels.
The Great Expectations just shown after Christmas on BBC television also made excellent use of a similar type of landscape http://news.bbcimg.co.uk/media/images/57360000/jpg/_57360351_jex_1266312_de27-1.jpg in fact filmed at Tollesbury Wick marshes in Essex. Dickens set the novel on the Kent side of the Thames estuary which is very similar in feel.
For more photos of marshlands see my Flickr site.