Through Sept. 30, 2011, Hyatt Gold Passport members can earn 2,500 Aeroplan miles per Hyatt stay at eligible rates. Registration is required and members can earn up to 25,000 bonus miles during the promotion. You must be a Hyatt Gold Passport and Aeroplan member to receive the bonus. Be sure to choose Aeroplan miles as your earning preference. With this offer, Hyatt Gold Passport members can earn five times the regular earning rate of 500 Aeroplan miles per stay. Visit http://www.webflyer.com/link/?4981 to register.