18 May - 19 May , Monarch Green, Willington DL15 0GROpen house event at Monarch Green 18 May - 19 May , Hill Top Drive, Rochdale, OL11 2SBSummer savings event at Hill Top Park 25 May - 26 May , Doncaster Road, Langold, Nottinghamshire, S81 9FROpen house event at Firbeck Fields 25 May - 26 May , Rhodes Point, Cecil Cl, Rhodesia, Worksop, S80 3HUOpen house event at Rhodes Point