Part of the grounds of historic Urquhart Castle has been shrouded in scaffolding to allow for repairs.
Works are ongoing at the terrace and visitor centre to allow masonry work to be undertaken before the high summer season.
The project started in April and is due for completion by the end of June.
The works are focusing on the rotunda area used as a visitor centre and for ticket sales and admissions.
The site is one of the most visited tourist attractions in the Highlands, with thousands flocking to the area to see the castle and take in spectacular views over Loch Ness.
The contract for erecting the scaffold has been awarded to Cumbernauld firm Kaefer C&D Ltd after a bidding process involving seven companies.
The highest bid was £148,412 and the lowest £21,499.
The latest work is part of an ongoing programme of refurbishment works around Urquhart Castle and its grounds.
A spokeswoman for owners Historic Environment Scotland said: “This contract was for the supply and installation of scaffolding to enable high level masonry repair works to the modern visitor centre.
“The works commenced in late April and are due to finish around the end of June 2017.
“The visitor centre and castle will remain open throughout the duration of the works.”
Urquhart Castle sits on a rocky outcrop which juts out into Loch Ness, south of Drumnadrochit.
It was once one of Scotland’s largest castles but is now ruinous.
Its remains include a tower house – the most recent building on the site – that commands views of the famous loch and Great Glen.
Following the invasion of King Edward I of England in 1296, it fell into English hands and was then reclaimed and lost again.
In the 1300s it figured prominently in the Scots’ struggle for independence and came under the control of Robert the Bruce after he became king of Scots in 1306.
It passed into state care in 1913, and is one of the most visited of all Scotland’s castles.
It is also a popular venue for wedding ceremonies.
