A-B. From the trailhead at Ionad Siúil follow the blue (and red) arrows onto a minor road with signposts for Tobar Cholmcille. The red arrows are for the longer Lúb na Droma. After 100m turn left at a T-junction and after another 400m turn left at a 3-way junction. Continue to follow the blue and red arrows as the loop takes you away from the village in the direction of Beefan Mountain. After approx 2km the loops leave surfaced roadways and join a stony mountain road at a metal gate. It is a short detour here for Tobar Cholmcille (St Columba’s Well) - the loop continues straight and uphill.
B-C. Continue to follow the blue and red arrows as the mountain road ascends. After approx 2km you reach a point where you have a chance to take a spur (left) to the Túr (a Signal Tower). The trip will add about 40mins to your walk - but is well worth it for the spectacular views. The loops continue to follow (sometimes faint) mountain roads across a summit and then descend to reach a surfaced roadway. Here the Lúb na Droma (red arrows) turns left and uphill - you turn right and downhill.
C-A. Now follow the blue arrows downhill for 1km to reach a metal gate. Continue straight ahead and downhill here - and note that the red loop has rejoined from your left. Continue to follow the blue and red arrows as the loops descend via minor roads to return to the trailhead.