I came upon this location via a 1995 photo book that I purchased secondhand.
A church in marsh land..Seemed quite interesting subject and location.
Google shows it as Romney Marsh, but the book says Walland Marsh.
More information and history https://www.romneymarshchurches.org.uk/fairfield

The small bridges provide access over the dykes. Side elevation.

Frontal elevation.

Side elevation, with the boggy dyke in the foreground.

Frontal elevation with reflection in the dyke water.