[RWD version 1 ] This route shows how you can start at Cloon Wood carpark and get to Prince Williams Seat via the tracks that lead up from Curtlestown Wood car park which is about 1.5km east of Cloon.
There is no developed route between these two system of tracks but if head up from Cloon and reach the second sharp turn left, you will see an area of young trees and a fence about 25m away to the east. Head around NE from the forest road and you should find yourself on a path beside a high fence. Ascend along this and turn right at the top. You will then find yourself only about 40m from a right bend in a track leading up from Curtlestown. There is a gully with small stream in it to cross which can be awkward particularly in summer with high fern covering.
Once crossed you can work your way uphill to Prince Williams Seat using the Wicklow Way.
Note also the route from the tor on Knocknagun which leads SW. This is useful for getting to a forest road. From there you can get to Glencree by turning right (west) but this track goes east along a rough track back towards the forest above Cloon.
The route downhill through the trees seems to come and go but can be followed and reaches one of the forest roads. (In 2021 the route in the trees had occasional piles of rock on tree stumps that sort of indicate the way.)