Saint John is a city of neighbourhoods, with residents closely identifying with their particular area. The central peninsula on the east side of the harbour, and the area immediately opposite on the west side, hosts the site of the original city from the merger of Parrtown and Carleton. The area north of the Highway #1 from the South Central Peninsula is called the North End; both areas being predominantly urban residential older housing. To the east of the Courtney Bay / Forebay and south of New Brunswick Route 1 is the East Side, where the city has experienced its greatest suburban sprawl in recent decades with commercial retail centres and residential subdivisions. The portion of the city west of the St. John River is collectively referred to as West Side, although West Saint Johners typically divide this area into several neighbourhoods. The southern part of Lancaster abutting Saint John Harbour and the Bay of Fundy is Bayshore and the location of Canadian Pacific Railway's Bayshore Yard. West of Lancaster, the city hosts its second largest park, and one of the largest coastal urban parks in the country. The Irving Nature Park, formerly Saints' Rest Beach sits on an extensive peninsula called Taylor's Island extending into the western part of the harbour into the Bay of Fundy.