the missing persons inquiry Criminal_investigation which followed was one of the largest in the history of west yorkshire police Patrolling , involving Cause_to_be_included the search Scrutiny of around 1,750 buildings Building , underwater searches Scrutiny of thirty-two drainage Emptying wells , the draining Emptying of a two-mile section of canal and the halting Hindering of household waste collections .

popular recurring events include public access Having_or_lacking_access to selected Choosing buildings similar to doors open days ; vintage transport , including visits Traveling to the historic ballarat railway station by unk victoria locomotives ( unk ) , vintage bus rides , double decker buses , vintage car displays , horse and cart and use of ballarat 's preserved vintage tramway at the ballarat botanical gardens ; actors in period garb ; architecture and history walking tours ; and exhibits of private and public paraphernalia collections ; theatrical performance ; and trade displays for heritage organisations .