The plans include a 6,000-capacity indoor arena, food centre and new four-star hotel
Plans for a £75m overhaul of the Royal Highland Show site on the outskirts of Edinburgh have been unveiled.
A pavilion overlooking the main ring, a 6,000-capacity indoor arena, food centre and new four-star hotel are all proposed for the Ingliston showground.
The revamp is aimed at helping the Royal Highland and Agricultural Society of Scotland (RHASS) attract more year-round events.
Proposals to relocate the showground to Norton Park have been put on hold.
Airport operator BAA announced last September that it would not need to expand Edinburgh Airport onto about a third of the showground until 2020.
RHASS had been hoping the airport would bankroll the vast majority of the estimated £350m cost of relocating to Norton Park, on the other side of the A8.
The latest plans also include the expansion of an existing hotel and another indoor hall.
Ray Jones, RHASS chief executive, said: "In the year that we celebrate our 225th anniversary it is highly appropriate that we are able to showcase our plans for the next 20 years and our aspirations for our long-term future at Norton Park.
"RHASS currently contributes over £250m to the Scottish economy every year, with over a million visitors to our site and more than 200 events.
"We are working with the airport to secure a 20 year timeframe before moving to Norton Park.
"The development is key for the West of Edinburgh and Scotland and our Norton Park site could see the society double its contribution to the Scottish economy to £500m."