Hi, I am planning a surprise trip for my daughters. Unfortunately we only have about 2 1/2 days there beginning the day after Christmas. They love to shop! We will be arriving on Amtrak at the Penn Station and staying at the Grand Hyatt since I had earned a few free nights. A few questions.... What's the best way to get from the train station to the hotel? How far is it? Should we concentrate on shopping and where would the best after Christmas deals be? Thanks.