Spa Week has announced the official dates of National Spa Week - Spring 2013. April 15 through 21, 2013, hundreds of spas and wellness facilities from coast to coast will offer up to three of their most signature services, normally costing $100 to $500, for just $50 each. Now in its 18th installation, Spa Week is the leading and most reputable Spa Marketing Event dedicated to consumer awareness through its affordable services.