Save Tatton Park Action Group, which made the Freedom Of Information request, said the report raised "very worrying questions" as to the long term financial sustainability of the proposals.

BBC: Council planning to lend ?5m to Tatton Park adventure park

The historic marketplaces of Faneuil Hall and Quincy Market, and Boston Common (America's oldest public park and the starting point of Boston's Freedom Trail) are all within walking distance.

BBC: Business trip: Boston

If Dugard's captors gave her any freedom, locals will start piping up about how she went to the grocery store or to the park, suggesting that she could have fled at any time.

BBC: Couple deny California abduction