Protesters in Spain joined groups in Portugal and Italy, arguing that uncontrolled tourism was raising housing prices and forcing locals out.

Protesters in Spain, Italy and Portugal are calling for a curb on mass tourism - with Barcelona organisers telling demonstrators to bring water pistols to shoot at holidaymakers.Campaigners say excessive levels of tourism are forcing locals out of affordable housing,

Protests during the upcoming G7 leaders' summit in Kananaskis, Alta., may be starkly different than demonstrations happening this week against immigration crackdowns in the United States.

In the streets of Barcelona, demonstrators armed with water guns sprayed unsuspecting tourists as part of growing protests.