Killavullen Loop is a 7.9 mile loop trail located near the city of Castletownroche that offers the chance to see wildlife. The trail is rated as moderate and primarily used for hiking, walking, trail running, and birding.
Starting from the graveyard car park, proceed uphill to the forest entrance at the bend in the road. Follow the purple arrow onto a leafy woodland path. This is a segment of the Blackwater Way, marked with yellow arrows and the 'trekking man' logo. After a fifth of a mile, you will reach an uphill path on your left. This is where your loop will rejoin the woodland path on your return journey. Continue straight at this junction. Follow the woodland path for another tenth of a mile to where the Blackwater Way turns right onto a downhill path. You veer left here, following the purple arrows which will guide you around the remainder of the loop. Continue to follow this path for a further quarter of a mile to exit onto a forest track, where you turn left. Continue along the forest track until you reach a T junction, at which you turn right and begin the ascent toward Corran Mountain. As you ascend, views of the Avondhu region and the Boggeragh Mountains open up on your right. After almost 2 miles, the loop reaches its highest point (400m) where a forestry track which leads uphill to the summit of Corran and a metal mast diverges from your current path. Continue straight here. The loop now begins to descend, gently for the first half-mile, to reach a grassy track on the left near a right bend. Turn left onto the grassy track and follow it along the edge of the forestry (on your right) for a third of a mile to reach a narrow woodland path going downhill to your right. Take this path for a brief tenth of a mile to exit again onto a forest track where you turn left. The loop continues its gentle descent, with good views of the Blackwater Valley opening up in front and to your right. After almost 2 miles, you reach a 'crossroads' of forestry tracks at which you turn left. The loop ascends briefly before turning right into woodland and then following a series of paths downhill to eventually reach a wooden-log barrier. Turn right here and enjoy the remaining journey back to the trailhead.