Cnoc Bolais [Tower Hill]

About Cnoc Bolais [Tower Hill]

Situated at the rugged western tip of the Beara Peninsula, this coastal Marilyn offers an exceptional vantage point over Dursey Sound. The climb follows rough, heathery ground to a summit marked by a historic signal tower, providing sweeping views across the Atlantic towards the Skelligs and the Slieve Miskish range.

Key Statistics

Find It

Did You Know?

• •The English name 'Tower Hill' refers to the ruins of a Napoleonic-era signal tower standing on the summit, built in 1804 as part of a coastal defence chain to monitor for French naval activity.
• •The Irish name Cnoc Bolais likely stems from 'buaile', referring to a summer mountain pasture or 'booley', where cattle were historically grazed on the high slopes during the warmer months.
• •From the summit, walkers can look directly down upon the Dursey Island cable car—Ireland’s only cable car—and see the three famous offshore rocks known as the Bull, the Cow, and the Calf.
• •Despite its modest height of 252 metres, the hill is classified as a Marilyn because it is the most prominent point for several kilometres, dropping steeply into the sea on three sides.
• •The hill is a reliable indicator of local weather; if the signal tower is obscured from the road, it is generally considered an optimistic afternoon for a walk.