I will be in Washington in October for the Marine Corp Marathon and am thinking of staying at the Hyatt Arlington as it is close to the finish line. Is this hotel within walking distance to all of the museums, etc? Also, it appears that they do not have a shuttle to the start line so I'm wondering if that is within walking distance as well. Any help you can give me would e most appreciated. If there are other hotels that you would suggest, I would appreciate that as well.