Looks innocent that car to the right there doesn't it? Don't beleive it! My youngest is currently laid up with a suspected fracture in her foot after being run over by one of these things. I do not recommend going to the nearest hospital to Wembley when england are playing at home with a child with a "minor" injury. We were there nearly six hours and that's not counting the half hour wait for an ambulance.
By the way these are not my kids this image was taken directly from their website
If you are anywhere near Wembley Don't go to Fantasy Island Play Area it's dangerous. At my daughter's recent birthday party one of the guests split is head open on an unprotected steel bar