Around 30 caravans were set up in an illegal encampment next to Surrey's multi-million pound homes over the weekend.
The group gained access to the grounds of Stoke Park, Guildford, after a groundsman reportedly left the access gate open.
Their presence sparked fury among local residents after various scheduled events were forced to cancel over the weekend, including the local parkrun.
Guildford parkrun organisers said they could 'not safely hold the event' due to the risk of moving vehicles.
They told runners: 'We are sorry to say that Guildford parkrun is cancelled this Saturday 14th June due to an unauthorised encampment in the park, as we cannot safely hold the event if there is a risk of vehicle movements.
