It seems that the older Hyatt is directly on the Riverwalk and the Grand Hyatt not so close. Safety is my main concern--I will be alone (older/small build) and am wondering how safe the walk to and from the Grand Hyatt at all hours of the night would be. The GH is newer and has a nice RC. The price difference isn't great--please give me your thoughts and help me make a decision. Thanks very much for your feedback.