Home Industry News Hyatt Regency Lake Washington at Seattle’s Southport Makes its Debut Industry NewsNews Releases Hyatt Regency Lake Washington at Seattle’s Southport Makes its Debut July 11, 2017 Facebook Twitter WhatsApp Linkedin ReddIt Email RENTON, Wash. (July 10, 2017): Hyatt today celebrated the opening of Hyatt Regency Lake Washington aThank you for your interest in The Registry. You must Subscribe or Log In to read the rest of this content.