Definition of "marshy"

Nearer the coast, the land becomes markedly more marshy, with long, winding channels striking inland from the sea, making access to some of the waterside villages rather difficult.

1950 December, R. C. J. Day and R. K. Kirkland, “The Kelvedon & Tollesbury Light Railway”, in Railway Magazine, page 838

West of Keswick a short descent at 1 in 122 brings the train down to the low-lying and marshy ground between Derwentwater and Bassenthwaite Lake and to the crossing of the Derwent - the outfall from Derwentwater, [...].

1961 October, Voyageur, “The Cockermouth, Keswick & Penrith Railway”, in Trains Illustrated, page 601