Beware! This cache will be a challenge in stealth due to extreme muggle activity most days but particularly on weekends! However this spot is a lovely place to sit and watch the bird activity in the swamp. Today we watched a coot building a nest for its mate - he provided the materials but had the wisdom to leave the decorating to his lady friend :)
You are looking for a black tube containing a logbook and a pencil. Room only for a geocoin or two, or some small swappables.