Far fewer pause to consider the quieter engineering that made monastic life on such a precipitous rock possible in the first place. Tucked along the north-western side of the Lower Monks' Garden, just below the entrance to the main terrace, is a smaller terrace that went largely unnoticed until conservation and repair work fully revealed it. Measuring roughly twelve metres in length, two and a quarter metres in width, and standing about two metres high, it is modest in scale but precise in construction, built directly onto the island's bedrock and held in place by a drystone wall, a technique in which stones are laid without mortar and rely entirely on weight, fit, and gravity for their stability.

What makes the terrace particularly interesting is not its size but its position within a layered system of constructed spaces. Sceilg Mhichíl's monks, working from at least the early medieval period, had to carve and terrace the sheer rock face to create any usable ground at all. Each flat surface was a deliberate act of landscape-making, and this smaller terrace sits in functional relationship with the Lower Monks' Garden beside it and the main terrace above. A platform sits on top of the terrace, suggesting it served not just as a retaining structure but as part of a sequence of working or ritual spaces. The detail comes from a personal communication with E. Bourke, and the terrace's full extent was only established during relatively recent conservation work, meaning it is a feature whose presence has been understood in its current form for a comparatively short time.