The watching-recording brief undertaken in September 1987 during the final stages of the fitting out of the `Pilgrim's Way', located a major drain, feeding foul water from the main south range of the baths. Coursed Roman bricks set in a tough pale yellow mortar, marked an extension of the main drain uncovered during excavations under the Marlowe Arcade (Annual Report 1978-9, 7). Also exposed in this small but rewarding cutting was part of a tessellated pavement for a room south of the southern range. This discovery taken together with evidence for a similar floor under the tower of the church (Annual Report 1986-7, 9) tentatively suggests the presence of a range of rooms in the south-western corner of the baths complex or perhaps part of the apodyterium or principal entrance for the baths.

The watching brief was funded by Heritage Projects (Canterbury) Limited.