Ffynnon Cybi and associated works

The site consists of a well house, a secondary well house added at the rear, and a cottage for pilgrims attached on the E side, the site being approached by a wide paved causeway, with a second causeway leading to the ty-bach set over the stream to the west. The well house is roughly 5m square internally, the external corners splayed, and rising approximately 3.3m to the springing of a corbelled dome. A single door opening on the S side. The cottage consisted of a single heated room with attic floor over now removed. It has a door opening against the external wall of the well house, and a single window. The roof was pitched, with a stack on the thick E gable end. The wall offsets at the rear. The secondary well house is attached to the rear, built into the slope and over the actual water source. Its access is placed on the W side against the rear wall of the main structure.

The main well chamber, for which there is evidence of a corbelled vault, contains a sunken tank approximately 2.2m x 1.5m and 1m deep, with a surrounding walkway, narrow at the rear, and having steps down on the E and W. Various niches in the walls, probably for the bathers' clothing. The waters pass from the smaller wellhouse below the N wall directly into the tank, and exit under the front wall to an open culvert leading away to the SW. A later door, now blocked, lead directly into the cottage. The cottage has a small fireplace in the gable wall, and a recess probably for the stair on the rear wall.

A cobbled causeway 1.1m wide leads parallel to the culvert some 17m to the single square latrine, now ruined.