 Anyway, the "old town" areas of Porvoo and Rauma were saved, the wooden old town of Rauma, Old Rauma, eventually becoming a UNESCO World Heritage site.There was also at this time more disposable income; one outlet for this was the growth in the number of leisure homes – previously the preserve of the very wealthy – preferably placed alone on one of the numerous isolated lakesides or the coastal waterfront.An essential part of the leisure home (occupied for summer holidays and intermittently during the spring and autumn, but close up for the winter) has been the sauna, usually as a separate building.