As throughout Ireland, much erosion has taken place in the intervening time and at some point, likely in the last 11,700 years which is known as the Holocene (since the end of the last Ice Age) this section of the headland became a bridge with a sea cave eroded through it and then subsequently it became detached from the mainland behind it.
Thus forming what we see today, an impressive sea arch which is Ireland's largest sea arch. Note that a sea stack, such as Dun Briste is different to a sea arch.
The name Doe Castle is an anglicisation of Caisleán na dTuath which means castle of the area or district - a túath being an administrative area in Gaelic Ireland.
The tower itself is 15th century but the outer enclosing walls, the bawn, date to the 17th century.
He even took his Sergeant Pepper’s gypsy caravan out to Dorinish.
Lennon leased the land to Sid Rawle who intended to set up a permanent hippie commune on the island. This only lasted two years, the 30 or so inhabitants living in tents on the windswept island, a fire destroyed supplies and tents and in 1972 the commune on Dorinish disbanded.
Despite only returning once more to Dorinish, Lennon still planned to retire there with Yoko Ono, the plan was not realised due to his untimely death in 1980.
Yoko Ono sold Dorinish in 1984.
And yet it is how Ireland often is, not the bright sunshine and blue sky of typical postcard images. The landscape is sympathtic to the soft weather of an Irish day.
There's a poetry to the landscape in such conditions as here in Donegal and although I typically head for woodlands in grey weather, I do still enjoy photographing the open landscape with the distant grey of mountains melding in with the grey of the sky.
In fairness, Dublin's Phoenix Park did see 33C in 2022, the second highest temperature recorded in Ireland after the record 33.3C in Kilkenny set in 1887.
I'm not complaining, the stormy weather was much more interesting for photography than sunny, warm and hazy heatwave conditions would have given; crashing waves showing the power of the Atlantic as it meets the geological landscape of these cliffs.
Indeed these cliffs as you see them rise steeply for 100 to 120m above the deep blue ocean below, the rocks here are amongst Ireland's oldest, dating to the Pre-Cambrian.