Semi-circular Walls and Steps leading to Canal Terrace

Curved rubble retaining walls in two tiers, with sandstone steps arranged in two flights of 16 steps each. The steps have coped parapets and the walls have a series of plain flat buttresses; there is a central bench recess to the lower tier. The upper contains a bowed pergola walk or viewing terrace, with recessed seats at either end, contained within slate-roofed niches. The retaining wall continues for two straight bays to N and S, each with two large stepped buttresses. At the bottom in the centre is an advanced flight of 8 steps leading to the level of the Canal Terrace. This has low, curved flanking walls which sweep forwards to create a concave space to contrast with the main, convex walls; 2 stone sphinx figures surmount plain plinth-piers flanking the steps. To the N and S, the concave flanking walls return in a straight line parallel with the Canal Terrace; these are retaining walls, roughly 1.5m high and with plain regularly-spaced flat buttresses.