Visitors to Glasgow's top tourist attractions will have to pay more to park from June 1 - a lot more.
New tariffs are coming in at both the Kelvingrove Art Gallery & Museum and the Riverside Museum.
Charges - which are broadly the same at both venues - will apply per hour rather than the current one-off tariff of £1 for four hours.
It will mean a stay of up to one hour will rise in cost from £1 presently to £1.60.
Between one and two hours will go up from the £1 charge now to £3.20.
Up to three hours will see a hike up to £4.80.
And stays of between three and four hours from June 1 will go up from £1 to a new charge of £6.40 - a rise of 540%.
New charges will apply thereafter for stays over four hours.
Previously the maximum stay at Kelvingrove was four hours.
Visitors to the Riverside currently pay £2.50 for anyone staying between four and 10 hours.
Charges will also apply for the first time to vehicles parking overnight.
Drivers will pay £2 between 6pm and 8am.
Kelvingrove museum has said the car parking charges have nothing to do with them.
It tweeted saying: "The car park at Kelvingrove Museum is managed by City Parking.
"We’ve been informed new parking charges will take effect from 1st June.
"Parking will then be charged per hour rather than £1 for 4 hours.
"Entry to all Glasgow Museums remains free of charge."
Notices have gone up next to ticket machines around the museums advising of the increases.
Some people have already taken to social media to criticise the hikes.
One Twitter user wrote: "Pure extortion and certainly won't help the city's museums or tourist image."
Car parks around the museums have been some of the cheapest in the city.
More than 1.3 million people visited Kelvingrove last year, according to the Association of Leading Visitor Attractions.
Some 50,000 more people visited the transport attractions at the Riverside Museum in the city's Harbour district.
Many visitors arrive on foot for both attractions - but the Riverside is less central and not so handily placed as Kelvingrove.
The city council has pledged to reduce congestion and pollution, and hiking car par charges may be a way of reducing traffic volumes.
A council spokesman said: “The charges for these car parks were incredibly low, which meant they were often swamped by commuter parkers – blocking visitors to our venues, museums and galleries.
“The new tariff reflects existing charges at other surface car parks, which are based on an hourly rate. It should encourage a greater turnover of cars, ensuring vistors who need to park can.”