Blairquhan — say blair-WHAN — stands in parkland on the Water of Girvan a mile from Straiton, and it is reached by a famous three-mile drive through an avenue of beech and lime, which is a large part of the experience.
The house
The Regency castle was built in 1821 by William Burn for Sir David Hunter Blair, replacing an earlier tower house on the site. It is Tudor-Gothic — turrets, battlements and mullioned windows — arranged around a great top-lit saloon, and it was one of Burn's earliest and most influential country houses. The Hunter Blair family held it for nearly two hundred years before it was sold.
The estate holds a walled garden, a pinetum with notable specimen trees, and the Water of Girvan running through the park.
On screen
Blairquhan stood in for Balmoral in Stephen Frears' The Queen, with Helen Mirren — which is the thing most visitors have heard about it, and which explains the occasional car of people driving up the avenue hoping to look round.
What a visitor can realistically do
The honest answer is: not much, unless something is on. The avenue and the parkland can be appreciated from the public road, and the estate has at times opened for specific events, garden openings or by arrangement. If you want to see inside, the practical routes are attending an event or booking the exclusive-use hire.
It sits alongside Straiton — the conservation village with its waterfall walk and the monument — and the start of the Carrick Forest Drive to Loch Doon. About 30 minutes from Girvan by the valley road.