I know this technically isn't what the OP was referring to, but we live on the outskirts of the City, so lots of parks, fields and forests - beautiful
But literally yesterday, we've had a horde of what we refer to in the UK as the 'Travelling Community' descend upon us, setting up camp in the nearby nature reserve. There are already bags of human waste and Trailer Park Boys-style piss jugs dotted here and there...