The most direct route is from one of the roads to the south, such as from around Q7588 0413 A. Ascend more or less north along the rocky southern spur of the Castle Hill. There are a series of outcrops on this ridge which, with imagination, look like fortifications. As of 2012 the heather here is relatively low and probably has been burnt within the last few years. Allow around 2.5 hours for the round trip which is of around 7km.

A route from the east is to start at Quarry Hill car park Q83642 07816 B with room for many cars. Walk uphill and west on a track initially. After passing the deflector station the track runs out. Walk the long, but easy, ridge with a drop to the south at its end for Castle hill.

Attractions of the summit include views over Castlemaine Harbour (the inner recess of Dingle Bay) and on the other side the fields, coast and hedgerows just NW of Killorglin. Linkback: https://mountainviews.ie/summit/276/comment/5036/

Perhaps because it is overshadowed by the other summits of the Slieve Mishes Castle Hill is seldom visited, however it has good views over Dingle Bay. This picture was taken from near the top of Baurtregaum NE Top. In the background and over Castlemaine Harbour (the inner recess of Dingle Bay) are the fields, coast and hedgerows just NW of Killorglin. Linkback: https://mountainviews.ie/summit/276/comment/2623/

The long easy ridge from Quarry Hill car park Q83642 07816 B passing over Barnageehy and the Iron Man, push my toes into the sandy beach surface of Glanbrack Mountain, the short sharp climb to Baurtregaum and the final jewel of Castle Hill. Castlemaine harbour reflecting silver spring sunlight , laying back in the short heather, my eyes tracing the shore out beyond Dingle bay , for a moment truly a King in His Castle. Linkback: https://mountainviews.ie/summit/276/comment/2622/

Unusually for an Irish mountain, Castle Hill is steeper on its western side than any other as can be seen from this photo from the south. Linkback: https://mountainviews.ie/summit/276/comment/14805/

Pic shows a view of Castlemaine Harbour and Dingle Bay from the summit of Castle Hill, with the Iveragh mountains peeking up through the morning mist in the distance. Linkback: https://mountainviews.ie/summit/276/comment/17915/

I included Castle Hill in a round of the four Baurtregaum tops as I thought that, once high, I might as well continue along the ridge to Castle Hill. Dropping my rucsac just below the summit of Baurtregaum, I got to the top of the Hill in around 20 minutes and the views were superb! Another 50 minutes or so and I was back at my rucsac, enjoying a coffee and chocolate log. It's around 3.2k out and back with a climb of around 340m. Although this adds a fair chunk of climb to the day, its still 'better value' than climbing Castle Hill on its own from the south! I would recommend to anyone who hasn't already climbed the Baurtregaums, to include Castle Hill in their day. Linkback: https://mountainviews.ie/summit/276/comment/17960/