Dumbarton Castle will open its doors to the public on September 11 after being closed for six months.
Historic Environment Scotland (HES) has announced reopening dates for 10 sites.
Several castles and cathedrals are to reopen in Scotland for the first time since the coronavirus pandemic forced their closure.
HES is aiming to reopen 70 percent of its estate by mid-September with safety and hygiene measures in place.
Tickets must be booked in advance.
Alex Paterson, chief executive of HES, said: “The heritage and tourism sectors have, along with many others, been impacted by the Covid-19 pandemic, so I am really pleased that we are now continuing to reopen more historic attractions.
“By mid-September, visitors will be able to access our historic sites throughout the country from the Scottish Borders and the central belt to the Highlands and islands.
“Getting our sites ready to reopen after being closed for the longest period since the Second World War has been no easy feat, and we are extremely thankful to the visitors and members who have continued to support us through these unprecedented times.”
