Do you have any advice on where to go for those travellers who are tired of getting fleeced in Plaza Major and just want to experience the Spanish capital from a local’s point of view? You can share your tip via GuardianWitness and there’s a great prize for the best one chosen by Tom Hall from Lonely Planet.

Up for grabs is a £200 voucher from Hotels.com. Submit your tips by clicking on the blue button and using the text tab. Try and include as much detail as possible – location, website address etc – and feel free to add a photo if you own the copyright to it, but it will be the text we’re judging! Your tip should be around 100 words.Terms and conditions.

Closes 19 March 2014 at 6am GMT

· GuardianWitness is the home of user-generated content on the Guardian. Contribute your video, pictures and stories, and browse news, reviews and creations submitted by others. Posts will be reviewed prior to publication on GuardianWitness, and the best pieces will feature on the Guardian site.

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