As tourists descend on Barcelona for the America's Cup, the welcome from locals isn't as warm as the weather.

The city has been grappling with the after-effects of over-tourism - and residents have been spotted wearing anti-America's Cup merchandise in protest.

BloggerAtLarge.com's Megan Singleton says people are fed up with tourism pushing up the prices of services and accommodation. 

"You've got the tourists coming over and taking all the Airbnbs - that's why the locals are finding their accommodation prices have gone sky-high, that there's nowhere for them to stay."

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