Threave Castle interior reopens to visitors for first time in four years
The historic site welcomes visitors back inside following conservation work
Threave Castle, once home to the infamous Black Douglas family, will open its interior to visitors on Saturday 1st August 2026 after essential conservation work and masonry inspections were completed.
Historic Environment Scotland (HES), responsible for managing the site, has facilitated the reopening of the castle's interior, which had been closed for four years while undergoing renovations.
Masonry Inspections and Repairs
Although the island and its grounds have been accessible since April, the inner castle doors remained shut as specialist teams carried out high-level masonry inspections.
The inspections assessed the condition of the castle’s stonework and the effects of climate change on the site.
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Substantial repairs were made to the 15th-century artillery wall and further work was done on the vaulted ceiling.
A safe access route has been created on the ground floor, allowing visitors to access the Great Hall while some conservation work continues.
Two new jetties now service the island.
Wildlife and Nature Reserve
Threave Castle sits within a wetland nature reserve, providing a vital habitat for a diverse range of wildlife.
The island is home to a variety of birdlife including jackdaws, peregrine falcons, and barn owls.
In the grounds, visitors might spot wildflowers, moths, butterflies, stoats, hen pheasants, and occasionally deer, while the broader nature reserve hosts ospreys, otters, and kingfishers.
Comments From Malcolm Price
Malcolm Price, Monument Manager at Threave Castle, said:
“Threave Castle is an incredibly special place with a fascinating history, and we are excited to welcome visitors not just to the island but now inside the castle walls too.
“Once the home of the infamous Black Douglas family, the castle was fitted with formidable battlements - which visitors can still see the remnants of today. The artillery wall, which was state-of-the-art in its time, kept King James II’s forces at bay during the siege of 1455.
“Conservation work is vital to ensuring visitors can continue to enjoy our sites for years to come, and it’s wonderful that Threave Castle can once again welcome people through its doors.”
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Visiting Information
Visitors can reach Threave Castle by passenger boat, with the site open daily from 10am to 4:30pm.
Last tickets are available for purchase at 3:45pm.
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