Similar track to a number of others which I used for guidance. Parked at the forest entrance having turned up at the school in Laragh. Headed through the forest, briefly joining the Wicklow way before deviating onto the track for Brockagh East.
Brockagh East Top is a lovely walk in itself on a fine day, achievable by most. It's probably a family walk to that point, in dry conditions, with quite easy going terrain. However, of itself, to keep it as a family walk, you'd probably have to return by way of ascent.
As you head westwards from Brockagh East, the terrain is much more boggy. It becomes quite evident why Brockagh is not the route of choice for an ascent of Tonelagee.