Park on the roadside at V91700 54569 A and follow Beara Way on a well marked track through the woods for 4.5 kms before the climb up the back of the valley under the Sugarloaf. The Beara way is shown by a series of yellow posts up to and past Lough Tobernavaha. Just before the lake turn north and climb the rocky shelf to the summit.
The summit is a series of rocky shelves jutting sideways from the heather Linkback: https://mountainviews.ie/summit/341/comment/5101/

Sugarloaf West as Simon mentions has two possible tops .The photo here is taken from the lower one looking down to Glengarriff.
As you enter Glengariff from Bantry on your left hidden by trees is the former site of Roches Royal Hotel.
It was here that Tim Healy, the future first Governor-General of the Irish Free State, was arrested for his activities with the Land League. Renowned for his wit and sharp tongue he went from being an ardent supporter of Parnell to one of his fiercest critics.
When Parnell asked his colleagues at one party meeting "Who is the master of the party?", Healy famously retorted with another question "Aye, but who is the mistress of the party?" referring to Parnells ongoing affair with Mrs O'Shea.
Tim Healy also gives his name to the nearby Healy Pass.
Last word though to Robert Llyod Praeger who, writing almost 75 years ago, summed up the magic of this area.
"Best of all is it to penetrate on foot the wild region of hill and cliff and lake lying just west of Glengarriff, not built on such a massive or lofty scale as Macgillycuddy's Reeks, but surpassing them for variety and sheer beauty.
Enter this enchanted region by way of Barley lake or Adrigole glen with strong boots and a raincoat to exorcise the demons of air and water, and I would wish to be with you in body, as I shall be in spirit" Linkback: https://mountainviews.ie/summit/341/comment/6067/

Toberavanaha overlooks the wild glacial valley to the north-east as shown in this picture. The nearer lake rejoices in the anglicised name of Eekenohoolikeaghaun, the further is Derreenadarodia. The rough “corduroy” texture of the rock and the bare uninhabited nature of the valley make it appear so wild a place that you would think that it had only just been carved out by the glaciers. The high ground to the left of the picture is part of the lake studded Glenlough Mountain – really a broad plateau running north-south for over 2k. Linkback: https://mountainviews.ie/summit/341/comment/519/

Toberavanaha has two possible candidates for main summit, one to the north and west, one to the east. According to my best averaged value from the GPS, the height is at around 568 for the north and west one as against 564 for the east one, but I would be open to correction. What’s interesting about this place is that compared to the well known Sugarloaf that is so near, Toberavanaha is relatively unvisited, with a feel of remoteness. As we visited it we saw a fox.

Our photo shows Lough Toberavanaha with part of the Bantry Bay coastline east of Adrigole in view. Linkback: https://mountainviews.ie/summit/341/comment/518/