Viewfinder competition: win a £150 hotel voucher

Kayakers and anglers flock to the river that flows swiftly through this “City of Tribes”, popularised in song by a famous crooner. Photograph: Alamy

The finish of an ocean race will draw crowds next summer, but foodies may prefer a mollusc festival … Photograph: Alamy

while book lovers visit the haunts of two of that country’s literary giants. Name the city. Photograph: Alamy

This week’s winner will receive a £150 voucher from Hotels.com which can be used at more than 120,000 places to stay across the world, from quirky B&Bs and family bolt holes to boutique hotels. Hotels.com customers can get a night free for every 10 stayed with its rewards scheme. Email your answer by Thursday to viewfinder@observer.co.uk or send a postcard, with address and phone number, to Viewfinder, The Observer, Kings Place, 90 York Way, London N1 9GU.

■ Last week’s answer was Lalibela, Ethiopia. The winner was Marie Hale, from Ormskirk, Lancashire. Photograph: Alamy