The world's last sea-going paddle steamer has been withdrawn from service for 2019. 

The Waverley, run by Waverley Excursions Ltd, is in need of urgent work on its boiler systems to ensure it can get back on the water, according to bosses. 

The boat sails on the Clyde, among other locations across the UK, offering 

READ MORE: Glasgow berth of Waverley in need of urgent work

However, passengers who had booked a trip for later this year were informed on Friday that the ship has been removed from service. 

A statement on the company's website reads: "Waverley Excursions Ltd deeply regrets to inform our customers and loyal supporters that Paddle Steamer Waverley will not operate in 2019. 

"As part of the winter maintenance programme we have been undertaking boiler works. Unfortunately, after extensive consultation and investigation it is now conclusive that the ship’s boilers require replacement.

READ MORE: Glasgow apprentices working to preserve city's shipbuilding heritage

"We immediately face a significant challenge to raise the required funds to reboiler Waverley and return her to service.

"Waverley is owned by a registered charity which will shortly be launching an appeal to ‘Save the Waverley’and ensure she sails in 2020.

"We fully appreciate any support at this time to help return Waverley to steam."

Read more of today's top Glasgow stories. 

The boat, which is currently docked on the Clyde close to Glasgow Science Centre, was bought by a charity for £1 and restored to its original appearance more than 15 years ago.